release: cut the v8.0.2 release

* Updates buildifier to a version that also comes with windows binaries.
* Fixes a few new formatting/lint warnings
* Removes the `args-order` warning because it is no longer a warning.. and is now part of the formatter.

Patch version of #31112

PR Close #31129

.bazelignore

@@ -4,4 +4,5 @@ aio/content
 aio/node_modules
 aio/tools/examples/shared/node_modules
 integration/bazel
+integration/bazel-schematics/demo
 packages/bazel/node_modules

.bazelrc

@@ -145,3 +145,12 @@ build:remote --remote_accept_cached=false
 # Load any settings specific to the current user. Needs to be last statement in this
 # config, as the user configuration should be able to overwrite flags from this file.
 try-import .bazelrc.user
+
+###############################
+# NodeJS rules settings
+# These settings are required for rules_nodejs
+###############################
+
+# Turn on managed directories feature in Bazel
+# This allows us to avoid installing a second copy of node_modules
+common --experimental_allow_incremental_repository_updates

.circleci/config.yml

@@ -15,8 +15,8 @@
 #             `CI_CHROMEDRIVER_VERSION_ARG` env var (in `.circleci/env.sh`) points to a ChromeDriver
 #             version that is compatible with the Chrome version in the image.
 # **NOTE 2**: If you change the version of the docker images, also change the `cache_key` suffix.
-var_1: &default_docker_image circleci/node:10.12
-var_2: &browsers_docker_image circleci/node:10.12-browsers
+var_1: &default_docker_image circleci/node:10.16
+var_2: &browsers_docker_image circleci/node:10.16-browsers
 # We don't want to include the current branch name in the cache key because that would prevent
 # PRs from being able to restore the cache since the branch names are always different for PRs.
 # The cache key should only consist of dynamic values that change whenever something in the
@@ -26,7 +26,7 @@ var_2: &browsers_docker_image circleci/node:10.12-browsers
 # **NOTE 1 **: If you change the cache key prefix, also sync the restore_cache fallback to match.
 # **NOTE 2 **: Keep the static part of the cache key as prefix to enable correct fallbacks.
 # See https://circleci.com/docs/2.0/caching/#restoring-cache for how prefixes work in CircleCI.
-var_3: &cache_key v3-angular-node-10.12-{{ checksum "yarn.lock" }}-{{ checksum "WORKSPACE" }}-{{ checksum "packages/bazel/package.bzl" }}-{{ checksum "aio/yarn.lock" }}
+var_3: &cache_key v3-angular-node-10.16-{{ checksum "yarn.lock" }}-{{ checksum "WORKSPACE" }}-{{ checksum "packages/bazel/package.bzl" }}-{{ checksum "aio/yarn.lock" }}
 
 # Initializes the CI environment by setting up common environment variables.
 var_4: &init_environment
@@ -53,7 +53,10 @@ var_5: &setup_bazel_remote_execution
   run:
     name: "Setup bazel RBE remote execution"
     command: |
-      openssl aes-256-cbc -d -in .circleci/gcp_token -k "$CI_REPO_NAME" -out /home/circleci/.gcp_credentials
+      # We need ensure that the same default digest is used for encoding and decoding
+      # with openssl. Openssl versions might have different default digests which can
+      # cause decryption failures based on the openssl version. https://stackoverflow.com/a/39641378/4317734
+      openssl aes-256-cbc -d -in .circleci/gcp_token -md md5 -k "$CI_REPO_NAME" -out /home/circleci/.gcp_credentials
       echo "export GOOGLE_APPLICATION_CREDENTIALS=/home/circleci/.gcp_credentials" >> $BASH_ENV
       sudo bash -c "echo 'build --config=remote' >> /etc/bazel.bazelrc"
 
@@ -99,7 +102,7 @@ var_10: &restore_cache
     keys:
       - *cache_key
       # This fallback should be the cache_key without variables.
-      - v3-angular-node-10.12-
+      - v3-angular-node-10.16-
 
 # Branch filter that can be specified for jobs that should only run on publish branches
 # (e.g. master or the patch branch)
@@ -250,16 +253,14 @@ jobs:
       - run: yarn --cwd aio build --progress=false
         # Lint the code
       - run: yarn --cwd aio lint
-        # Run PWA-score tests
-        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
-      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
-        # Check the bundle sizes.
-        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
-      - run: yarn --cwd aio payload-size
         # Run unit tests
       - run: yarn --cwd aio test --progress=false --watch=false
         # Run e2e tests
       - run: yarn --cwd aio e2e --configuration=ci
+        # Run PWA-score tests
+      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
+        # Check the bundle sizes.
+      - run: yarn --cwd aio payload-size
         # Run unit tests for Firebase redirects
       - run: yarn --cwd aio redirects-test
 
@@ -285,13 +286,15 @@ jobs:
       - *init_environment
         # Build aio (with local Angular packages)
       - run: yarn --cwd aio build-local --progress=false
-        # Run PWA-score tests
-        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
-      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
         # Run unit tests
       - run: yarn --cwd aio test --progress=false --watch=false
         # Run e2e tests
       - run: yarn --cwd aio e2e --configuration=ci
+        # Run PWA-score tests
+      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
+        # Check the bundle sizes.
+      # Temporary disabled due to a problem with patch branch (8.0.x)
+      # - run: yarn --cwd aio payload-size aio-local
 
   test_aio_local_ivy:
     <<: *job_defaults
@@ -303,13 +306,15 @@ jobs:
       - *init_environment
         # Build aio with Ivy (using local Angular packages)
       - run: yarn --cwd aio build-with-ivy --progress=false
-        # Run PWA-score tests
-        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
-      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
         # Run unit tests
       - run: yarn --cwd aio test --progress=false --watch=false
         # Run e2e tests
       - run: yarn --cwd aio e2e --configuration=ci
+        # Run PWA-score tests
+      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
+        # Check the bundle sizes.
+      # Temporary disabled due to a problem with patch branch (8.0.x)
+      # - run: yarn --cwd aio payload-size aio-local-ivy
 
   test_aio_tools:
     <<: *job_defaults
@@ -500,7 +505,10 @@ jobs:
       - run: git config --global --unset "url.ssh://git@github.com.insteadof"
       - run:
           name: Decrypt github credentials
-          command: 'openssl aes-256-cbc -d -in .circleci/github_token -k "${KEY}" -out ~/.git_credentials'
+          # We need ensure that the same default digest is used for encoding and decoding with
+          # openssl. Openssl versions might have different default digests which can cause
+          # decryption failures based on the installed openssl version. https://stackoverflow.com/a/39641378/4317734
+          command: 'openssl aes-256-cbc -d -in .circleci/github_token -md md5 -k "${KEY}" -out ~/.git_credentials'
       - run: ./scripts/ci/publish-build-artifacts.sh
 
   aio_monitoring_stable:

.circleci/env.sh

@@ -23,7 +23,7 @@ setPublicVar CI_BRANCH "$CIRCLE_BRANCH";
 # `.circleci/config.yml`. See http://chromedriver.chromium.org/downloads for a list of versions.
 # This variable is intended to be passed as an arg to the `webdriver-manager update` command (e.g.
 # `"postinstall": "webdriver-manager update $CI_CHROMEDRIVER_VERSION_ARG"`).
-setPublicVar CI_CHROMEDRIVER_VERSION_ARG "--versions.chrome 2.45";
+setPublicVar CI_CHROMEDRIVER_VERSION_ARG "--versions.chrome 75.0.3770.90";
 setPublicVar CI_COMMIT "$CIRCLE_SHA1";
 # `CI_COMMIT_RANGE` will only be available when `CIRCLE_COMPARE_URL` is also available (or can be
 # retrieved via `get-compare-url.js`), i.e. on push builds (a.k.a. non-PR, non-scheduled builds and

.circleci/get-commit-range.js

@@ -6,9 +6,9 @@
  * node get-commit-range <build-number> [<compare-url> [<circle-token>]]
  * ```
  *
- * Returns the value of the `CIRCLE_COMPARE_URL` environment variable (if defined) or, if this is
- * not a PR build (i.e. `CIRCLE_PR_NUMBER` is not defined), retrieves the equivalent of
- * `CIRCLE_COMPARE_URL` for jobs that are part of a rerun workflow.
+ * Returns the commit range, either extracting it from `compare-url` (if defined), which is of the
+ * format of the `CIRCLE_COMPARE_URL` environment variable, or by retrieving the equivalent of
+ * `CIRCLE_COMPARE_URL` for jobs that are part of a rerun workflow and extracting it from there.
  *
  * **Context:**
  * CircleCI sets the `CIRCLE_COMPARE_URL` environment variable (from which we can extract the commit

.github/CODEOWNERS

@@ -179,6 +179,7 @@
 # ===========================================================
 #
 #   - kara
+#   - jasonaden
 
 
 # ===========================================================
@@ -533,6 +534,15 @@
 /aio/content/examples/interpolation/**                          @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
 /aio/content/examples/template-syntax/**                        @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
 /aio/content/images/guide/template-syntax/**                    @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/binding-syntax/**                         @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/property-binding/**                       @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/attribute-binding/**                      @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/two-way-binding/**                        @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/built-in-directives/**                    @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/template-reference-variables/**           @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/inputs-outputs/**                         @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/examples/template-expression-operators/**          @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+
 
 /aio/content/guide/pipes.md                                     @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
 /aio/content/examples/pipes/**                                  @angular/fw-core @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
@@ -812,6 +822,7 @@ testing/**                                                      @angular/fw-test
 /aio/content/guide/releases.md                                  @angular/fw-docs-packaging @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
 /aio/content/guide/updating.md                                  @angular/fw-docs-packaging @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
 /aio/content/guide/workspace-config.md                          @angular/fw-docs-packaging @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
+/aio/content/guide/deprecations.md                              @angular/fw-docs-packaging @angular/framework-global-approvers @angular/framework-global-approvers-for-docs-only-changes
 
 
 

CHANGELOG.md

@@ -1,3 +1,29 @@
+<a name="8.0.2"></a>
+## [8.0.2](https://github.com/angular/angular/compare/8.0.1...8.0.2) (2019-06-19)
+
+
+### Bug Fixes
+
+* **bazel:** builder workspace should use nodejs v10.16.0 ([#31088](https://github.com/angular/angular/issues/31088)) ([c198dc6](https://github.com/angular/angular/commit/c198dc6))
+* **core:** temporarily remove [@deprecated](https://github.com/deprecated) jsdoc tag for a TextBedStatic.get overload ([#30714](https://github.com/angular/angular/issues/30714)) ([0a7aebb](https://github.com/angular/angular/commit/0a7aebb)), closes [#30514](https://github.com/angular/angular/issues/30514)
+* **language-service:** Remove 'any' in getQuickInfoAtPosition ([#31014](https://github.com/angular/angular/issues/31014)) ([7f21449](https://github.com/angular/angular/commit/7f21449))
+
+
+
+<a name="8.0.1"></a>
+## [8.0.1](https://github.com/angular/angular/compare/8.0.0...8.0.1) (2019-06-13)
+
+
+### Bug Fixes
+
+* **bazel:** do not modify tsconfig.json ([#30984](https://github.com/angular/angular/issues/30984)) ([49307f0](https://github.com/angular/angular/commit/49307f0))
+* **bazel:** Load global stylesheet in dev and prod ([#30879](https://github.com/angular/angular/issues/30879)) ([5a7bcd1](https://github.com/angular/angular/commit/5a7bcd1))
+* **common:** expose the `HttpUploadProgressEvent` interface as public API ([#30852](https://github.com/angular/angular/issues/30852)) ([4e8614b](https://github.com/angular/angular/commit/4e8614b)), closes [#30814](https://github.com/angular/angular/issues/30814)
+* **core:** TypeScript related migrations should cater for BOM ([#30719](https://github.com/angular/angular/issues/30719)) ([26e3615](https://github.com/angular/angular/commit/26e3615)), closes [/github.com/angular/angular-cli/blob/master/packages/angular_devkit/schematics/src/tree/recorder.ts#L72](https://github.com//github.com/angular/angular-cli/blob/master/packages/angular_devkit/schematics/src/tree/recorder.ts/issues/L72) [#30713](https://github.com/angular/angular/issues/30713)
+* **service-worker:** avoid uncaught rejection warning when registration fails ([#30876](https://github.com/angular/angular/issues/30876)) ([08c38a1](https://github.com/angular/angular/commit/08c38a1))
+
+
+
 <a name="8.0.0"></a>
 # [8.0.0](https://github.com/angular/angular/compare/8.0.0-rc.5...8.0.0) (2019-05-28)
 

README.md

@@ -23,6 +23,6 @@ guidelines for [contributing][contributing] and then check out one of our issues
 
 [browserstack]: https://www.browserstack.com/automate/public-build/LzF3RzBVVGt6VWE2S0hHaC9uYllOZz09LS1BVjNTclBKV0x4eVRlcjA4QVY1M0N3PT0=--eb4ce8c8dc2c1c5b2b5352d473ee12a73ac20e06
 [contributing]: https://github.com/angular/angular/blob/master/CONTRIBUTING.md
-[quickstart]: https://angular.io/guide/quickstart
+[quickstart]: https://angular.io/start
 [changelog]: https://github.com/angular/angular/blob/master/CHANGELOG.md
 [ng]: https://angular.io

WORKSPACE

@@ -1,4 +1,7 @@
-workspace(name = "angular")
+workspace(
+    name = "angular",
+    managed_directories = {"@npm": ["node_modules"]},
+)
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
@@ -15,16 +18,15 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 # Fetch rules_nodejs so we can install our npm dependencies
 http_archive(
     name = "build_bazel_rules_nodejs",
-    sha256 = "3a3efbf223f6de733475602844ad3a8faa02abda25ab8cfe1d1ed0db134887cf",
-    urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/0.27.12/rules_nodejs-0.27.12.tar.gz"],
+    sha256 = "e04a82a72146bfbca2d0575947daa60fda1878c8d3a3afe868a8ec39a6b968bb",
+    urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/0.31.1/rules_nodejs-0.31.1.tar.gz"],
 )
 
 # Check the bazel version and download npm dependencies
 load("@build_bazel_rules_nodejs//:defs.bzl", "check_bazel_version", "check_rules_nodejs_version", "node_repositories", "yarn_install")
 
-# Bazel version must be at least v0.21.0 because:
-#   - 0.21.0 Using --incompatible_strict_action_env flag fixes cache when running `yarn bazel`
-#            (see https://github.com/angular/angular/issues/27514#issuecomment-451438271)
+# Bazel version must be at least the following version because:
+#   - 0.26.0 managed_directories feature added which is required for nodejs rules 0.30.0
 check_bazel_version(
     message = """
 You no longer need to install Bazel on your machine.
@@ -33,22 +35,28 @@ Try running `yarn bazel` instead.
     (If you did run that, check that you've got a fresh `yarn install`)
 
 """,
-    minimum_bazel_version = "0.21.0",
+    minimum_bazel_version = "0.26.0",
 )
 
-# The NodeJS rules version must be at least v0.15.3 because:
+# The NodeJS rules version must be at least the following version because:
 #   - 0.15.2 Re-introduced the prod_only attribute on yarn_install
 #   - 0.15.3 Includes a fix for the `jasmine_node_test` rule ignoring target tags
 #   - 0.16.8 Supports npm installed bazel workspaces
 #   - 0.26.0 Fix for data files in yarn_install and npm_install
 #   - 0.27.12 Adds NodeModuleSources provider for transtive npm deps support
-check_rules_nodejs_version("0.27.12")
+#   - 0.30.0 yarn_install now uses symlinked node_modules with new managed directories Bazel 0.26.0 feature
+#   - 0.31.1 entry_point attribute of nodejs_binary & rollup_bundle is now a label
+check_rules_nodejs_version(minimum_version_string = "0.31.1")
 
 # Setup the Node.js toolchain
 node_repositories(
-    node_version = "10.9.0",
+    node_repositories = {
+        "10.16.0-darwin_amd64": ("node-v10.16.0-darwin-x64.tar.gz", "node-v10.16.0-darwin-x64", "6c009df1b724026d84ae9a838c5b382662e30f6c5563a0995532f2bece39fa9c"),
+        "10.16.0-linux_amd64": ("node-v10.16.0-linux-x64.tar.xz", "node-v10.16.0-linux-x64", "1827f5b99084740234de0c506f4dd2202a696ed60f76059696747c34339b9d48"),
+        "10.16.0-windows_amd64": ("node-v10.16.0-win-x64.zip", "node-v10.16.0-win-x64", "aa22cb357f0fb54ccbc06b19b60e37eefea5d7dd9940912675d3ed988bf9a059"),
+    },
+    node_version = "10.16.0",
     package_json = ["//:package.json"],
-    preserve_symlinks = True,
     # yarn 1.13.0 under Bazel has a regression on Windows that causes build errors on rebuilds:
     # ```
     # ERROR: Source forest creation failed: C:/.../fyuc5c3n/execroot/angular/external (Directory not empty)
@@ -71,6 +79,10 @@ yarn_install(
     package_json = "//:package.json",
     # Don't install devDependencies, they are large and not used under Bazel
     prod_only = True,
+    # Temporarily disable node_modules symlinking until the fix for
+    # https://github.com/bazelbuild/bazel/issues/8487 makes it into a
+    # future Bazel release
+    symlink_node_modules = False,
     yarn_lock = "//:yarn.lock",
 )
 

aio/browserslist

@@ -6,8 +6,7 @@
 # For additional information see: https://developers.google.com/search/docs/guides/rendering
 
 > 0.5%
-last 2 versions
+last 2 major versions
 Firefox ESR
 not dead
-IE 9-11 # For IE 9-11 support.
-Chrome 41 # For Googlebot support.
+IE 11

aio/content/examples/architecture/src/app/mini-app.ts

@@ -12,7 +12,7 @@ import { Component } from '@angular/core';
 // #enddocregion import-core-component
 
 @Component({
- selector: 'my-app',
+ selector: 'app-root',
  template: 'Welcome to Angular'
 })
 export class AppComponent {

aio/content/examples/attribute-binding/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,47 @@
+'use strict'; // necessary for es6 output in node
+
+import { browser, element, by } from 'protractor';
+
+describe('Attribute binding example', function () {
+
+  beforeEach(function () {
+    browser.get('');
+  });
+
+  it('should display Property Binding with Angular', function () {
+    expect(element(by.css('h1')).getText()).toEqual('Attribute, class, and style bindings');
+  });
+
+  it('should display a table', function() {
+    expect(element.all(by.css('table')).isPresent()).toBe(true);
+  });
+
+  it('should display an Aria button', function () {
+    expect(element.all(by.css('button')).get(0).getText()).toBe('Go for it with Aria');
+  });
+
+  it('should display a blue background on div', function () {
+    expect(element.all(by.css('div')).get(1).getCssValue('background-color')).toEqual('rgba(25, 118, 210, 1)');
+  });
+
+  it('should display a blue div with a red border', function () {
+    expect(element.all(by.css('div')).get(4).getCssValue('border')).toEqual('2px solid rgb(212, 30, 46)');
+  });
+
+  it('should display a div with replaced classes', function () {
+    expect(element.all(by.css('div')).get(5).getAttribute('class')).toEqual('new-class');
+  });
+
+  it('should display four buttons', function() {
+    let redButton = element.all(by.css('button')).get(1);
+    let saveButton = element.all(by.css('button')).get(2);
+    let bigButton = element.all(by.css('button')).get(3);
+    let smallButton = element.all(by.css('button')).get(4);
+
+    expect(redButton.getCssValue('color')).toEqual('rgba(255, 0, 0, 1)');
+    expect(saveButton.getCssValue('background-color')).toEqual('rgba(0, 255, 255, 1)');
+    expect(bigButton.getText()).toBe('Big');
+    expect(smallButton.getText()).toBe('Small');
+  });
+
+});

aio/content/examples/attribute-binding/src/app/app.component.css

@@ -0,0 +1,22 @@
+.special {
+  background-color: #1976d2;
+  color: #ffffff;
+}
+
+.item {
+  font-weight: bold;
+}
+.clearance {
+  border: 2px solid #d41e2e;
+
+}
+.item-clearance {
+  font-style: italic;
+
+}
+
+.new-class {
+  background-color: #ed1b2f;
+  font-style: italic;
+  color: #fff;
+}

aio/content/examples/attribute-binding/src/app/app.component.html

@@ -0,0 +1,65 @@
+
+<h1>Attribute, class, and style bindings</h1>
+<h2>Attribute binding</h2>
+<!-- #docregion attrib-binding-colspan -->
+<table border=1>
+  <!--  expression calculates colspan=2 -->
+  <tr><td [attr.colspan]="1 + 1">One-Two</td></tr>
+
+  <!-- ERROR: There is no `colspan` property to set!
+    <tr><td colspan="{{1 + 1}}">Three-Four</td></tr>
+  -->
+  <!-- #docregion colSpan -->
+  <!-- Notice the colSpan property is camel case -->
+  <tr><td [colSpan]="1 + 1">Three-Four</td></tr>
+  <!-- #enddocregion colSpan -->
+
+  <tr><td>Five</td><td>Six</td></tr>
+</table>
+<!-- #enddocregion attrib-binding-colspan -->
+
+<div>
+  <!-- #docregion attrib-binding-aria -->
+  <!-- create and set an aria attribute for assistive technology -->
+  <button [attr.aria-label]="actionName">{{actionName}} with Aria</button>
+  <!-- #enddocregion attrib-binding-aria -->
+</div>
+
+<hr />
+
+<h2>Class binding</h2>
+
+<!-- #docregion is-special -->
+<h3>toggle the "special" class on/off with a property:</h3>
+<div [class.special]="isSpecial">The class binding is special.</div>
+
+<h3>binding to class.special overrides the class attribute:</h3>
+<div class="special" [class.special]="!isSpecial">This one is not so special.</div>
+
+<h3>Using the bind- syntax:</h3>
+<div bind-class.special="isSpecial">This class binding is special too.</div>
+<!-- #enddocregion is-special -->
+
+<!-- #docregion add-class -->
+<h3>Add a class:</h3>
+<div class="item clearance special" [class.item-clearance]="itemClearance">Add another class</div>
+<!-- #enddocregion add-class -->
+
+<!-- #docregion class-override -->
+<h3>Overwrite all existing classes with a new class:</h3>
+<div class="item clearance special" [attr.class]="resetClasses">Reset all classes at once</div>
+<!-- #enddocregion class-override -->
+
+<hr />
+
+<h2>Style binding</h2>
+
+<!-- #docregion style-binding-->
+<button [style.color]="isSpecial ? 'red': 'green'">Red</button>
+<button [style.background-color]="canSave ? 'cyan': 'grey'" >Save</button>
+<!-- #enddocregion style-binding -->
+
+<!-- #docregion style-binding-condition-->
+<button [style.font-size.em]="isSpecial ? 3 : 1" >Big</button>
+<button [style.font-size.%]="!isSpecial ? 150 : 50" >Small</button>
+<!-- #enddocregion style-binding-condition-->

aio/content/examples/attribute-binding/src/app/app.component.spec.ts

@@ -0,0 +1,27 @@
+import { TestBed, async } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+  it(`should have as title 'app'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app');
+  }));
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!');
+  }));
+});

aio/content/examples/attribute-binding/src/app/app.component.ts

@@ -0,0 +1,15 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+  actionName = 'Go for it';
+  isSpecial = true;
+  itemClearance = true;
+  resetClasses = 'new-class';
+  canSave = true;
+
+}

aio/content/examples/attribute-binding/src/app/app.module.ts

@@ -0,0 +1,18 @@
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+
+
+import { AppComponent } from './app.component';
+
+
+@NgModule({
+  declarations: [
+    AppComponent
+  ],
+  imports: [
+    BrowserModule
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

aio/content/examples/attribute-binding/src/index.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>AttributeBinding</title>
+  <base href="/">
+
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body>
+  <app-root></app-root>
+</body>
+</html>

aio/content/examples/attribute-binding/src/main.ts

@@ -0,0 +1,12 @@
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule)
+  .catch(err => console.log(err));

aio/content/examples/attribute-binding/stackblitz.json

@@ -0,0 +1,10 @@
+{
+  "description": "Attribute Binding",
+  "files": [
+    "!**/*.d.ts",
+    "!**/*.js",
+    "!**/*.[1,2].*"
+  ],
+  "file": "src/app/app.component.ts",
+  "tags": ["Attribute Binding"]
+}

aio/content/examples/binding-syntax/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,76 @@
+import { browser, element, by } from 'protractor';
+import { logging } from 'selenium-webdriver';
+
+describe('Binding syntax e2e tests', () => {
+
+  beforeEach(function () {
+    browser.get('');
+  });
+
+
+    // helper function used to test what's logged to the console
+    async function logChecker(button, contents) {
+      const logs = await browser.manage().logs().get(logging.Type.BROWSER);
+      const message = logs.filter(({ message }) => message.indexOf(contents) !== -1 ? true : false);
+      expect(message.length).toBeGreaterThan(0);
+    }
+
+
+  it('should display Binding syntax', function () {
+    expect(element(by.css('h1')).getText()).toEqual('Binding syntax');
+  });
+
+  it('should display Save button', function () {
+    expect(element.all(by.css('button')).get(0).getText()).toBe('Save');
+  });
+
+  it('should display HTML attributes and DOM properties', function () {
+    expect(element.all(by.css('h2')).get(1).getText()).toBe('HTML attributes and DOM properties');
+  });
+
+  it('should display 1. Use the inspector...', function () {
+    expect(element.all(by.css('p')).get(0).getText()).toContain('1. Use the inspector');
+  });
+
+  it('should display Disabled property vs. attribute', function () {
+    expect(element.all(by.css('h3')).get(0).getText()).toBe('Disabled property vs. attribute');
+  });
+
+
+  it('should log a message including Sarah', async () => {
+    let attributeButton = element.all(by.css('button')).get(1);
+    await attributeButton.click();
+    const contents = 'Sarah';
+    logChecker(attributeButton, contents);
+  });
+
+  it('should log a message including Sarah for DOM property', async () => {
+    let DOMPropertyButton = element.all(by.css('button')).get(2);
+    await DOMPropertyButton.click();
+    const contents = 'Sarah';
+    logChecker(DOMPropertyButton, contents);
+  });
+
+  it('should log a message including Sally for DOM property', async () => {
+    let DOMPropertyButton = element.all(by.css('button')).get(2);
+    let input = element(by.css('input'));
+    input.sendKeys('Sally');
+    await DOMPropertyButton.click();
+    const contents = 'Sally';
+    logChecker(DOMPropertyButton, contents);
+  });
+
+  it('should log a message that Test Button works', async () => {
+    let testButton = element.all(by.css('button')).get(3);
+    await testButton.click();
+    const contents = 'Test';
+    logChecker(testButton, contents);
+  });
+
+  it('should toggle Test Button disabled', async () => {
+    let toggleButton = element.all(by.css('button')).get(4);
+    await toggleButton.click();
+    const contents = 'true';
+    logChecker(toggleButton, contents);
+  });
+});

aio/content/examples/binding-syntax/src/app/app.component.css

@@ -0,0 +1,3 @@
+div {
+  padding: .25rem 0;
+}

aio/content/examples/binding-syntax/src/app/app.component.html

@@ -0,0 +1,45 @@
+
+<div>
+  <h1>Binding syntax</h1>
+  <hr />
+
+  <div>
+    <h2>Button disabled state bound to isUnchanged property</h2>
+    <!-- #docregion disabled-button -->
+    <!-- Bind button disabled state to `isUnchanged` property -->
+    <button [disabled]="isUnchanged">Save</button>
+    <!-- #enddocregion disabled-button -->
+  </div>
+
+  <hr />
+
+  <div (keyup)="0">
+    <h2>HTML attributes and DOM properties</h2>
+    <p>1. Use the inspector to see the HTML attribute and DOM property values. Click the buttons to log values to the console.</p>
+
+    <label>HTML Attribute Initializes to "Sarah":
+    <input type="text" value="Sarah" #bindingInput></label>
+    <div>
+    <button (click)="getHTMLAttributeValue()">Get HTML attribute value</button> Won't change.
+    </div>
+
+    <div>
+        <button (click)="getDOMPropertyValue()">Get DOM property value</button> Changeable. Angular works with these.
+    </div>
+
+    <p>2. Change the name in the input and click the buttons again.</p>
+  </div>
+
+  <hr />
+
+  <div>
+    <h3>Disabled property vs. attribute</h3>
+    <p>Use the inspector to see the Test Button work and its disabled property toggle.</p>
+    <div>
+    <button id="testButton" (click)="working()">Test Button</button>
+    </div>
+    <div>
+    <button (click)="toggleDisabled()">Toggle disabled property for Test Button</button>
+  </div>
+
+</div>

aio/content/examples/binding-syntax/src/app/app.component.spec.ts

@@ -0,0 +1,27 @@
+import { TestBed, async } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+  it(`should have as title 'app'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app');
+  }));
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!');
+  }));
+});

aio/content/examples/binding-syntax/src/app/app.component.ts

@@ -0,0 +1,33 @@
+import { Component, ViewChild, ElementRef } from '@angular/core';
+
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+
+  @ViewChild('bindingInput', { static: false }) bindingInput: ElementRef;
+
+  isUnchanged = true;
+
+  getHTMLAttributeValue(): any {
+    console.warn('HTML attribute value: ' + this.bindingInput.nativeElement.getAttribute('value'));
+  }
+
+  getDOMPropertyValue(): any {
+    console.warn('DOM property value: ' + this.bindingInput.nativeElement.value);
+  }
+
+  working(): any {
+    console.warn('Test Button works!');
+  }
+
+  toggleDisabled(): any {
+
+    let testButton = <HTMLInputElement> document.getElementById('testButton');
+    testButton.disabled = !testButton.disabled;
+    console.warn(testButton.disabled);
+  }
+}

aio/content/examples/binding-syntax/src/app/app.module.ts

@@ -0,0 +1,18 @@
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+
+
+import { AppComponent } from './app.component';
+
+
+@NgModule({
+  declarations: [
+    AppComponent
+  ],
+  imports: [
+    BrowserModule
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

aio/content/examples/binding-syntax/src/index.html

@@ -0,0 +1,14 @@
+<!-- #docregion -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <base href="/">
+    <title>Angular binding syntax example</title>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+  </head>
+  <body>
+    <app-root>Loading...</app-root>
+  </body>
+</html>
+<!-- #enddocregion -->

aio/content/examples/binding-syntax/src/main.ts

@@ -0,0 +1,12 @@
+// #docregion
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule);

aio/content/examples/binding-syntax/stackblitz.json

@@ -0,0 +1,10 @@
+{
+  "description": "Binding Syntax",
+  "files": [
+    "!**/*.d.ts",
+    "!**/*.js",
+    "!**/*.[1,2].*"
+  ],
+  "file": "src/app/app.component.ts",
+  "tags": ["Binding Syntax"]
+}

aio/content/examples/built-in-directives/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,78 @@
+'use strict';
+
+import { browser, element, by } from 'protractor';
+
+describe('Built-in Directives', function () {
+
+  beforeAll(function () {
+    browser.get('');
+  });
+
+  it('should have title Built-in Directives', function () {
+    let title = element.all(by.css('h1')).get(0);
+    expect(title.getText()).toEqual('Built-in Directives');
+  });
+
+  it('should change first Teapot header', async () => {
+    let firstLabel = element.all(by.css('p')).get(0);
+    let firstInput = element.all(by.css('input')).get(0);
+
+    expect(firstLabel.getText()).toEqual('Current item name: Teapot');
+    firstInput.sendKeys('abc');
+    expect(firstLabel.getText()).toEqual('Current item name: Teapotabc');
+  });
+
+
+  it('should modify sentence when modified checkbox checked', function () {
+    let modifiedChkbxLabel = element.all(by.css('input[type="checkbox"]')).get(1);
+    let modifiedSentence = element.all(by.css('div')).get(1);
+
+    modifiedChkbxLabel.click();
+    expect(modifiedSentence.getText()).toContain('modified');
+  });
+
+  it('should modify sentence when normal checkbox checked', function () {
+    let normalChkbxLabel = element.all(by.css('input[type="checkbox"]')).get(4);
+    let normalSentence = element.all(by.css('div')).get(7);
+
+    normalChkbxLabel.click();
+    expect(normalSentence.getText()).toContain('normal weight and, extra large');
+  });
+
+  it('should toggle app-item-detail', function () {
+    let toggleButton = element.all(by.css('button')).get(3);
+    let toggledDiv = element.all(by.css('app-item-detail')).get(0);
+
+    toggleButton.click();
+    expect(toggledDiv.isDisplayed()).toBe(true);
+  });
+
+  it('should hide app-item-detail', function () {
+    let hiddenMessage = element.all(by.css('p')).get(11);
+    let hiddenDiv = element.all(by.css('app-item-detail')).get(2);
+
+    expect(hiddenMessage.getText()).toContain('in the DOM');
+    expect(hiddenDiv.isDisplayed()).toBe(true);
+  });
+
+  it('should have 10 lists each containing the string Teapot', function () {
+    let listDiv = element.all(by.cssContainingText('.box', 'Teapot'));
+    expect(listDiv.count()).toBe(10);
+  });
+
+  it('should switch case', function () {
+    let tvRadioButton = element.all(by.css('input[type="radio"]')).get(3);
+    let tvDiv = element(by.css('app-lost-item'));
+
+    let fishbowlRadioButton = element.all(by.css('input[type="radio"]')).get(4);
+    let fishbowlDiv = element(by.css('app-unknown-item'));
+
+    tvRadioButton.click();
+    expect(tvDiv.getText()).toContain('Television');
+    fishbowlRadioButton.click();
+    expect(fishbowlDiv.getText()).toContain('mysterious');
+  });
+
+
+});
+

aio/content/examples/built-in-directives/src/app/app.component.css

@@ -0,0 +1,75 @@
+
+button {
+	font-size: 100%;
+	margin: 0 2px;
+}
+
+div[ng-reflect-ng-switch], app-unknown-item {
+  margin: .5rem 0;
+  display: block;
+}
+
+#noTrackByCnt,
+#withTrackByCnt {
+	color: darkred;
+	max-width: 450px;
+	margin: 4px;
+}
+
+img {
+	height: 100px;
+}
+
+.box {
+	border: 1px solid black;
+	padding: 6px;
+	max-width: 450px;
+}
+
+.child-div {
+	margin-left: 1em;
+	font-weight: normal;
+}
+
+.context {
+	margin-left: 1em;
+}
+
+.hidden {
+	display: none;
+}
+
+.parent-div {
+	margin-top: 1em;
+	font-weight: bold;
+}
+
+.course {
+	font-weight: bold;
+	font-size: x-large;
+}
+
+.helpful {
+	color: red;
+}
+
+.saveable {
+	color: limegreen;
+}
+
+.study,
+.modified {
+  font-family: "Brush Script MT";
+  font-size: 2rem;
+}
+
+.toe {
+	margin-left: 1em;
+	font-style: italic;
+}
+
+
+.to-toc {
+	margin-top: 10px;
+	display: block;
+}

aio/content/examples/built-in-directives/src/app/app.component.html

@@ -0,0 +1,253 @@
+<h1>Built-in Directives</h1>
+
+<h2>Built-in attribute directives</h2>
+
+<h3 id="ngModel">NgModel (two-way) Binding</h3>
+
+<fieldset><h4>NgModel examples</h4>
+  <p>Current item name: {{currentItem.name}}</p>
+  <p>
+    <!-- #docregion without-NgModel -->
+    <label for="without">without NgModel:</label>
+    <input [value]="currentItem.name" (input)="currentItem.name=$event.target.value" id="without">
+    <!-- #enddocregion without-NgModel -->
+
+  </p>
+
+  <p>
+    <!-- #docregion NgModel-1 -->
+    <label for="example-ngModel">[(ngModel)]:</label>
+    <input [(ngModel)]="currentItem.name" id="example-ngModel">
+    <!-- #enddocregion NgModel-1 -->
+  </p>
+
+  <p>
+    <label for="example-bindon">bindon-ngModel: </label>
+    <input bindon-ngModel="currentItem.name" id="example-bindon">
+  </p>
+
+  <p>
+    <!-- #docregion NgModelChange -->
+    <label for="example-change">(ngModelChange)="...name=$event":</label>
+    <input [ngModel]="currentItem.name" (ngModelChange)="currentItem.name=$event" id="example-change">
+      <!-- #enddocregion NgModelChange -->
+  </p>
+
+  <p>
+    <label for="example-uppercase">(ngModelChange)="setUppercaseName($event)"
+      <!-- #docregion uppercase -->
+      <input [ngModel]="currentItem.name" (ngModelChange)="setUppercaseName($event)" id="example-uppercase">
+      <!-- #enddocregion uppercase -->
+    </label>
+  </p>
+</fieldset>
+
+<hr><h2 id="ngClass">NgClass Binding</h2>
+
+<p>currentClasses is {{currentClasses | json}}</p>
+<!-- #docregion NgClass-1 -->
+<div [ngClass]="currentClasses">This div is initially saveable, unchanged, and special.</div>
+<!-- #enddocregion NgClass-1 -->
+<ul>
+  <li>
+    <label for="saveable">saveable</label>
+    <input type="checkbox" [(ngModel)]="canSave" id="saveable">
+  </li>
+  <li>
+    <label for="modified">modified:</label>
+    <input type="checkbox" [value]="!isUnchanged" (change)="isUnchanged=!isUnchanged" id="modified"></li>
+  <li>
+    <label for="special">special: <input type="checkbox" [(ngModel)]="isSpecial" id="special"></label>
+</li>
+</ul>
+<button (click)="setCurrentClasses()">Refresh currentClasses</button>
+
+<div [ngClass]="currentClasses">
+  This div should be {{ canSave ? "": "not"}} saveable,
+                  {{ isUnchanged ? "unchanged" : "modified" }} and
+                  {{ isSpecial ? "": "not"}} special after clicking "Refresh".</div>
+<br><br>
+<!-- #docregion special-div -->
+<!-- toggle the "special" class on/off with a property -->
+<div [ngClass]="isSpecial ? 'special' : ''">This div is special</div>
+<!-- #enddocregion special-div -->
+<div class="helpful study course">Helpful study course</div>
+<div [ngClass]="{'helpful':false, 'study':true, 'course':true}">Study course</div>
+
+
+<!-- NgStyle binding -->
+<hr><h3>NgStyle Binding</h3>
+<!-- #docregion without-ng-style -->
+<div [style.font-size]="isSpecial ? 'x-large' : 'smaller'">
+  This div is x-large or smaller.
+</div>
+<!-- #enddocregion without-ng-style -->
+
+
+<h4>[ngStyle] binding to currentStyles - CSS property names</h4>
+<p>currentStyles is {{currentStyles | json}}</p>
+
+<!-- #docregion NgStyle-2 -->
+<div [ngStyle]="currentStyles">
+  This div is initially italic, normal weight, and extra large (24px).
+</div>
+<!-- #enddocregion NgStyle-2 -->
+
+
+
+<br>
+<label>italic: <input type="checkbox" [(ngModel)]="canSave"></label> |
+<label>normal: <input type="checkbox" [(ngModel)]="isUnchanged"></label> |
+<label>xlarge: <input type="checkbox" [(ngModel)]="isSpecial"></label>
+<button (click)="setCurrentStyles()">Refresh currentStyles</button>
+<br><br>
+<div [ngStyle]="currentStyles">
+  This div should be {{ canSave ? "italic": "plain"}},
+                  {{ isUnchanged ? "normal weight" : "bold" }} and,
+                  {{ isSpecial ? "extra large": "normal size"}} after clicking "Refresh".</div>
+
+<hr>
+<h2>Built-in structural directives</h2>
+<h3 id="ngIf">NgIf Binding</h3>
+<div>
+  <p>If isActive is true, app-item-detail will render: </p>
+  <!-- #docregion NgIf-1 -->
+  <app-item-detail *ngIf="isActive" [item]="item"></app-item-detail>
+  <!-- #enddocregion NgIf-1 -->
+
+  <button (click)="isActiveToggle()">Toggle app-item-detail</button>
+</div>
+<p>If currentCustomer isn't null, say hello to Laura:</p>
+<!-- #docregion NgIf-2 -->
+<div *ngIf="currentCustomer">Hello, {{currentCustomer.name}}</div>
+<!-- #enddocregion NgIf-2 -->
+<p>nullCustomer is null by default. NgIf guards against null. Give it a value to show it:</p>
+<!-- #docregion NgIf-2b -->
+<div *ngIf="nullCustomer">Hello, <span>{{nullCustomer}}</span></div>
+<!-- #enddocregion NgIf-2b -->
+<button (click)="giveNullCustomerValue()">Give nullCustomer a value</button>
+
+
+<h4>NgIf binding with template (no *)</h4>
+
+<ng-template [ngIf]="currentItem">Add {{currentItem.name}} with template</ng-template>
+<hr>
+
+<h4>Show/hide vs. NgIf</h4>
+<!-- #docregion NgIf-3 -->
+<!-- isSpecial is true -->
+<div [class.hidden]="!isSpecial">Show with class</div>
+<div [class.hidden]="isSpecial">Hide with class</div>
+
+<p>ItemDetail is in the DOM but hidden</p>
+<app-item-detail [class.hidden]="isSpecial"></app-item-detail>
+
+<div [style.display]="isSpecial ? 'block' : 'none'">Show with style</div>
+<div [style.display]="isSpecial ? 'none'  : 'block'">Hide with style</div>
+<!-- #enddocregion NgIf-3 -->
+
+
+<hr>
+<h2 id="ngFor">NgFor Binding</h2>
+
+<div class="box">
+  <!-- #docregion NgFor-1, NgFor-1-2 -->
+  <div *ngFor="let item of items">{{item.name}}</div>
+  <!-- #enddocregion NgFor-1, NgFor-1-2 -->
+</div>
+
+<p>*ngFor with ItemDetailComponent element</p>
+<div class="box">
+  <!-- #docregion NgFor-2, NgFor-1-2 -->
+  <app-item-detail *ngFor="let item of items" [item]="item"></app-item-detail>
+  <!-- #enddocregion NgFor-2, NgFor-1-2 -->
+</div>
+
+
+<h4 id="ngFor-index">*ngFor with index</h4>
+<p>with <i>semi-colon</i> separator</p>
+<div class="box">
+  <!-- #docregion NgFor-3 -->
+  <div *ngFor="let item of items; let i=index">{{i + 1}} - {{item.name}}</div>
+  <!-- #enddocregion NgFor-3 -->
+</div>
+
+<p>with <i>comma</i> separator</p>
+<div class="box">
+ <div *ngFor="let item of items, let i=index">{{i + 1}} - {{item.name}}</div>
+</div>
+
+<h4 id="ngFor-trackBy">*ngFor trackBy</h4>
+<button (click)="resetList()">Reset items</button>
+<button (click)="changeIds()">Change ids</button>
+<button (click)="clearTrackByCounts()">Clear counts</button>
+
+<p><i>without</i> trackBy</p>
+<div class="box">
+  <div #noTrackBy *ngFor="let item of items">({{item.id}}) {{item.name}}</div>
+
+  <div id="noTrackByCnt" *ngIf="itemsNoTrackByCount" >
+    Item DOM elements change #{{itemsNoTrackByCount}} without trackBy
+  </div>
+</div>
+
+<p>with trackBy</p>
+<div class="box">
+  <div #withTrackBy *ngFor="let item of items; trackBy: trackByItems">({{item.id}}) {{item.name}}</div>
+
+  <div id="withTrackByCnt" *ngIf="itemsWithTrackByCount">
+    Item DOM elements change #{{itemsWithTrackByCount}} with trackBy
+  </div>
+</div>
+
+<br><br><br>
+
+<p>with trackBy and <i>semi-colon</i> separator</p>
+<div class="box">
+  <!-- #docregion trackBy -->
+  <div *ngFor="let item of items; trackBy: trackByItems">
+    ({{item.id}}) {{item.name}}
+  </div>
+  <!-- #enddocregion trackBy -->
+</div>
+
+<p>with trackBy and <i>comma</i> separator</p>
+<div class="box">
+  <div *ngFor="let item of items, trackBy: trackByItems">({{item.id}}) {{item.name}}</div>
+</div>
+
+<p>with trackBy and <i>space</i> separator</p>
+<div class="box">
+  <div *ngFor="let item of items trackBy: trackByItems">({{item.id}}) {{item.name}}</div>
+</div>
+
+<p>with <i>generic</i> trackById function</p>
+<div class="box">
+  <div *ngFor="let item of items, trackBy: trackById">({{item.id}}) {{item.name}}</div>
+</div>
+
+<hr><h2>NgSwitch Binding</h2>
+
+<p>Pick your favorite item</p>
+<div>
+  <label *ngFor="let i of items">
+    <div><input type="radio" name="items" [(ngModel)]="currentItem" [value]="i">{{i.name}}
+    </div>
+  </label>
+</div>
+
+<!-- #docregion NgSwitch -->
+<div [ngSwitch]="currentItem.feature">
+  <app-stout-item    *ngSwitchCase="'stout'"    [item]="currentItem"></app-stout-item>
+  <app-device-item   *ngSwitchCase="'slim'"     [item]="currentItem"></app-device-item>
+  <app-lost-item     *ngSwitchCase="'vintage'"  [item]="currentItem"></app-lost-item>
+  <app-best-item     *ngSwitchCase="'bright'"   [item]="currentItem"></app-best-item>
+<!-- #enddocregion NgSwitch -->
+  <!-- #docregion NgSwitch-div -->
+  <div *ngSwitchCase="'bright'"> Are you as bright as {{currentItem.name}}?</div>
+  <!-- #enddocregion NgSwitch-div -->
+<!-- #docregion NgSwitch -->
+  <app-unknown-item  *ngSwitchDefault           [item]="currentItem"></app-unknown-item>
+</div>
+<!-- #enddocregion NgSwitch -->
+

aio/content/examples/built-in-directives/src/app/app.component.ts

@@ -0,0 +1,115 @@
+import { Component, OnInit } from '@angular/core';
+import { Item } from './item';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent implements OnInit {
+
+  canSave =  true;
+  isSpecial = true;
+  isUnchanged = true;
+
+  isActive = true;
+  nullCustomer = null;
+  currentCustomer = {
+    name: 'Laura'
+  };
+
+  item: Item; // defined to demonstrate template context precedence
+  items: Item[];
+
+  currentItem: Item;
+
+
+  // trackBy change counting
+  itemsNoTrackByCount   = 0;
+  itemsWithTrackByCount = 0;
+  itemsWithTrackByCountReset = 0;
+  itemIdIncrement = 1;
+
+  ngOnInit() {
+    this.resetItems();
+    this.setCurrentClasses();
+    this.setCurrentStyles();
+    this.itemsNoTrackByCount = 0;
+  }
+
+  setUppercaseName(name: string) {
+    this.currentItem.name = name.toUpperCase();
+  }
+
+// #docregion setClasses
+  currentClasses: {};
+  setCurrentClasses() {
+    // CSS classes: added/removed per current state of component properties
+    this.currentClasses =  {
+      'saveable': this.canSave,
+      'modified': !this.isUnchanged,
+      'special':  this.isSpecial
+    };
+  }
+  // #enddocregion setClasses
+
+  // #docregion setStyles
+  currentStyles: {};
+  setCurrentStyles() {
+    // CSS styles: set per current state of component properties
+    this.currentStyles = {
+      'font-style':  this.canSave      ? 'italic' : 'normal',
+      'font-weight': !this.isUnchanged ? 'bold'   : 'normal',
+      'font-size':   this.isSpecial    ? '24px'   : '12px'
+    };
+  }
+  // #enddocregion setStyles
+
+  isActiveToggle() {
+    this.isActive = !this.isActive;
+  }
+
+  giveNullCustomerValue() {
+    !(this.nullCustomer = null) ? (this.nullCustomer = 'Kelly') : (this.nullCustomer = null);
+  }
+
+  resetNullItem() {
+    this.nullCustomer = null;
+  }
+
+  resetItems() {
+    this.items = Item.items.map(item => item.clone());
+    this.currentItem = this.items[0];
+    this.item = this.currentItem;
+  }
+
+  resetList() {
+    this.resetItems()
+    this.itemsWithTrackByCountReset = 0;
+    this.itemsNoTrackByCount = ++this.itemsNoTrackByCount;
+  }
+
+  changeIds() {
+
+    this.items.forEach(i => i.id += 1 * this.itemIdIncrement);
+    this.itemsWithTrackByCountReset = -1;
+    this.itemsNoTrackByCount = ++this.itemsNoTrackByCount;
+    this.itemsWithTrackByCount = ++this.itemsWithTrackByCount;
+  }
+
+  clearTrackByCounts() {
+    this.resetItems();
+    this.itemsNoTrackByCount = 0;
+    this.itemsWithTrackByCount = 0;
+    this.itemIdIncrement = 1;
+  }
+// #docregion trackByItems
+  trackByItems(index: number, item: Item): number { return item.id; }
+// #enddocregion trackByItems
+
+  trackById(index: number, item: any): number { return item['id']; }
+
+}
+
+
+

aio/content/examples/built-in-directives/src/app/app.module.ts

@@ -0,0 +1,34 @@
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+// #docregion import-forms-module
+import { FormsModule } from '@angular/forms'; // <--- JavaScript import from Angular
+// #enddocregion import-forms-module
+
+
+import { AppComponent } from './app.component';
+import { ItemDetailComponent } from './item-detail/item-detail.component';
+import { ItemSwitchComponents } from './item-switch.component';
+
+
+// #docregion import-forms-module
+@NgModule({
+  // #enddocregion import-forms-module
+  declarations: [
+    AppComponent,
+    ItemDetailComponent,
+    ItemSwitchComponents
+  ],
+  // #docregion import-forms-module
+
+  imports: [
+    BrowserModule,
+    FormsModule // <--- import into the NgModule
+  ],
+  // #enddocregion import-forms-module
+  providers: [],
+  bootstrap: [AppComponent]
+  // #docregion import-forms-module
+})
+export class AppModule { }
+// #enddocregion import-forms-module
+

aio/content/examples/built-in-directives/src/app/item-detail/item-detail.component.html

@@ -0,0 +1,3 @@
+<div>
+  <span>{{item?.name}}</span>
+</div>

aio/content/examples/built-in-directives/src/app/item-detail/item-detail.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ItemDetailComponent } from './item-detail.component';
+
+describe('ItemDetailComponent', () => {
+  let component: ItemDetailComponent;
+  let fixture: ComponentFixture<ItemDetailComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ItemDetailComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ItemDetailComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/built-in-directives/src/app/item-detail/item-detail.component.ts

@@ -0,0 +1,17 @@
+import { Component, Input } from '@angular/core';
+
+import { Item } from '../item';
+
+@Component({
+  selector: 'app-item-detail',
+  templateUrl: './item-detail.component.html',
+  styleUrls: ['./item-detail.component.css']
+})
+export class ItemDetailComponent {
+
+
+  @Input() item: Item;
+
+  constructor() { }
+
+}

aio/content/examples/built-in-directives/src/app/item-switch.component.ts

@@ -0,0 +1,50 @@
+import { Component, Input } from '@angular/core';
+import { Item } from './item';
+
+@Component({
+  selector: 'app-stout-item',
+  template: `I'm a little {{item.name}}, short and stout!`
+})
+export class StoutItemComponent {
+  @Input() item: Item;
+}
+
+@Component({
+  selector: 'app-best-item',
+  template: `This is the brightest {{item.name}} in town.`
+})
+export class BestItemComponent {
+  @Input() item: Item;
+}
+
+@Component({
+  selector: 'app-device-item',
+  template: `Which is the slimmest {{item.name}}?`
+})
+export class DeviceItemComponent {
+  @Input() item: Item;
+}
+
+@Component({
+  selector: 'app-lost-item',
+  template: `Has anyone seen my {{item.name}}?`
+})
+export class LostItemComponent {
+  @Input() item: Item;
+}
+
+@Component({
+  selector: 'app-unknown-item',
+  template: `{{message}}`
+})
+export class UnknownItemComponent {
+  @Input() item: Item;
+  get message() {
+    return this.item && this.item.name ?
+      `${this.item.name} is strange and mysterious.` :
+      'A mystery wrapped in a fishbowl.';
+  }
+}
+
+export const ItemSwitchComponents =
+  [ StoutItemComponent, BestItemComponent, DeviceItemComponent, LostItemComponent, UnknownItemComponent ];

aio/content/examples/built-in-directives/src/app/item.ts

@@ -0,0 +1,30 @@
+export class Item {
+  static nextId = 0;
+
+  static items: Item[] = [
+    new Item(
+      null,
+      'Teapot',
+      'stout'
+    ),
+    new Item(1, 'Lamp', 'bright'),
+    new Item(2, 'Phone', 'slim' ),
+    new Item(3, 'Television', 'vintage' ),
+    new Item(4, 'Fishbowl')
+  ];
+
+
+  constructor(
+    public id?: number,
+    public name?: string,
+    public feature?: string,
+    public url?: string,
+    public rate = 100,
+    ) {
+    this.id = id ? id : Item.nextId++;
+  }
+
+  clone(): Item {
+    return Object.assign(new Item(), this);
+  }
+}

aio/content/examples/built-in-directives/src/index.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>BuiltInDirectives</title>
+  <base href="/">
+
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body>
+  <app-root></app-root>
+</body>
+</html>

aio/content/examples/built-in-directives/src/main.ts

@@ -0,0 +1,12 @@
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule)
+  .catch(err => console.log(err));

aio/content/examples/built-in-directives/stackblitz.json

@@ -0,0 +1,10 @@
+{
+  "description": "Built-in Directives",
+  "files": [
+    "!**/*.d.ts",
+    "!**/*.js",
+    "!**/*.[1,2].*"
+  ],
+  "file": "src/app/app.component.ts",
+  "tags": ["Built-in Directives"]
+}

aio/content/examples/displaying-data/src/app/app-ctor.component.1.ts

@@ -1,14 +1,14 @@
 import { Component } from '@angular/core';
 
 @Component({
-  selector: 'app-ctor',
+  selector: 'app-root',
   template: `
     <h1>{{title}} [Ctor version]</h1>
     <h2>My favorite hero is: {{myHero}}</h2>
     `
 })
 // #docregion class
-export class AppCtorComponent {
+export class AppComponent {
   title: string;
   myHero: string;
 

aio/content/examples/dynamic-component-loader/src/app/ad-banner.component.ts

@@ -36,14 +36,14 @@ export class AdBannerComponent implements OnInit, OnDestroy {
 
   loadComponent() {
     this.currentAdIndex = (this.currentAdIndex + 1) % this.ads.length;
-    let adItem = this.ads[this.currentAdIndex];
+    const adItem = this.ads[this.currentAdIndex];
 
-    let componentFactory = this.componentFactoryResolver.resolveComponentFactory(adItem.component);
+    const componentFactory = this.componentFactoryResolver.resolveComponentFactory(adItem.component);
 
-    let viewContainerRef = this.adHost.viewContainerRef;
+    const viewContainerRef = this.adHost.viewContainerRef;
     viewContainerRef.clear();
 
-    let componentRef = viewContainerRef.createComponent(componentFactory);
+    const componentRef = viewContainerRef.createComponent(componentFactory);
     (<AdComponent>componentRef.instance).data = adItem.data;
   }
 

aio/content/examples/getting-started/src/app/cart/cart.component.2.html

@@ -9,7 +9,7 @@
 <!-- #docregion prices -->
 
 <div class="cart-item" *ngFor="let item of items">
-  <span>{{ item.name }} </span>
+  <span>{{ item.name }}</span>
   <span>{{ item.price | currency }}</span>
 </div>
 <!-- #enddocregion prices -->

aio/content/examples/getting-started/src/app/shipping/shipping.component.html

@@ -1,6 +1,6 @@
 <h3>Shipping Prices</h3>
 
 <div class="shipping-item" *ngFor="let shipping of shippingCosts | async">
-  <span>{{ shipping.type }} </span>
+  <span>{{ shipping.type }}</span>
   <span>{{ shipping.price | currency }}</span>
 </div>

aio/content/examples/getting-started/src/app/shipping/shipping.component.ts

@@ -16,7 +16,9 @@ export class ShippingComponent {
 // #enddocregion props
 
 // #docregion inject-cart-service
-  constructor(private cartService: CartService) {
+  constructor(
+    private cartService: CartService
+  ) {
 // #enddocregion inject-cart-service
     this.shippingCosts = this.cartService.getShippingPrices();
 // #docregion inject-cart-service

aio/content/examples/getting-started/tsconfig.0.json

@@ -0,0 +1,29 @@
+// This tsconfig is used in the TypeScript
+// configuration guide (../guide/typescript-configuration.md) 
+// to display the latest default configuration
+// Note: Update with every major release to the latest default
+// #docregion
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "baseUrl": "./",
+    "outDir": "./dist/out-tsc",
+    "sourceMap": true,
+    "declaration": false,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "importHelpers": true,
+    "target": "es2015",
+    "typeRoots": [
+      "node_modules/@types"
+    ],
+// #docregion lib    
+    "lib": [
+      "es2018",
+      "dom"
+    ]
+// #enddocregion lib
+  }
+}

aio/content/examples/inputs-outputs/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,70 @@
+'use strict';
+
+import { browser, element, by } from 'protractor';
+import { logging } from 'selenium-webdriver';
+
+describe('Inputs and Outputs', function () {
+
+
+  beforeEach(() => {
+    browser.get('');
+  });
+
+
+   // helper function used to test what's logged to the console
+  async function logChecker(button, contents) {
+    const logs = await browser
+      .manage()
+      .logs()
+      .get(logging.Type.BROWSER);
+    const message = logs.filter(({ message }) =>
+      message.indexOf(contents) !== -1 ? true : false
+    );
+    console.log(message);
+    expect(message.length).toBeGreaterThan(0);
+  }
+
+  it('should have title Inputs and Outputs', function () {
+    let title = element.all(by.css('h1')).get(0);
+    expect(title.getText()).toEqual('Inputs and Outputs');
+  });
+
+  it('should add 123 to the parent list', async () => {
+    let addToParentButton = element.all(by.css('button')).get(0);
+    let addToListInput = element.all(by.css('input')).get(0);
+    let addedItem = element.all(by.css('li')).get(4);
+    await addToListInput.sendKeys('123');
+    await addToParentButton.click();
+    expect(addedItem.getText()).toEqual('123');
+  });
+
+  it('should delete item', async () => {
+    let deleteButton = element.all(by.css('button')).get(1);
+    const contents = 'Child';
+    await deleteButton.click();
+    await logChecker(deleteButton, contents);
+  });
+
+  it('should log buy the item', async () => {
+    let buyButton = element.all(by.css('button')).get(2);
+    const contents = 'Child';
+    await buyButton.click();
+    await logChecker(buyButton, contents);
+  });
+
+  it('should save item for later', async () => {
+    let saveButton = element.all(by.css('button')).get(3);
+    const contents = 'Child';
+    await saveButton.click();
+    await logChecker(saveButton, contents);
+  });
+
+  it('should add item to wishlist', async () => {
+    let addToParentButton = element.all(by.css('button')).get(4);
+    let addedItem = element.all(by.css('li')).get(6);
+    await addToParentButton.click();
+    expect(addedItem.getText()).toEqual('Television');
+  });
+
+});
+

aio/content/examples/inputs-outputs/src/app/aliasing/aliasing.component.html

@@ -0,0 +1,7 @@
+<p>Save for later item: {{input1}}</p>
+<button (click)="saveIt()"> Save for later</button>
+
+
+  <p>Item for wishlist: {{input2}}</p>
+  <button (click)="wishForIt()"> Add to wishlist</button>
+

aio/content/examples/inputs-outputs/src/app/aliasing/aliasing.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { AliasingComponent } from './aliasing.component';
+
+describe('AliasingComponent', () => {
+  let component: AliasingComponent;
+  let fixture: ComponentFixture<AliasingComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ AliasingComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(AliasingComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/inputs-outputs/src/app/aliasing/aliasing.component.ts

@@ -0,0 +1,46 @@
+/* tslint:disable:use-input-property-decorator */
+/* tslint:disable:use-output-property-decorator */
+
+/* tslint:disable:no-input-rename */
+
+
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+
+@Component({
+  selector: 'app-aliasing',
+  templateUrl: './aliasing.component.html',
+  styleUrls: ['./aliasing.component.css'],
+  // #docregion alias
+  // tslint:disable: no-inputs-metadata-property no-outputs-metadata-property
+  inputs: ['input1: saveForLaterItem'], // propertyName:alias
+  outputs: ['outputEvent1: saveForLaterEvent']
+  // tslint:disable: no-inputs-metadata-property no-outputs-metadata-property
+  // #enddocregion alias
+
+})
+export class AliasingComponent {
+
+  input1: string;
+  outputEvent1: EventEmitter<string> = new EventEmitter<string>();
+
+  // #docregion alias-input-output
+  @Input('wishListItem') input2: string; //  @Input(alias)
+  @Output('wishEvent') outputEvent2 = new EventEmitter<string>(); //  @Output(alias) propertyName = ...
+  // #enddocregion alias-input-output
+
+
+  saveIt() {
+    console.warn('Child says: emiting outputEvent1 with', this.input1);
+    this.outputEvent1.emit(this.input1);
+  }
+
+  wishForIt() {
+    console.warn('Child says: emiting outputEvent2', this.input2);
+    this.outputEvent2.emit(this.input2);
+  }
+
+
+}
+/* tslint:enable:use-input-property-decorator */
+/* tslint:enable:use-output-property-decorator */
+

aio/content/examples/inputs-outputs/src/app/app.component.html

@@ -0,0 +1,45 @@
+<h1>Inputs and Outputs</h1>
+
+<!-- #docregion input-parent -->
+<app-item-detail [item]="currentItem"></app-item-detail>
+<!-- #enddocregion input-parent -->
+<hr>
+
+<!-- #docregion output-parent -->
+<app-item-output (newItemEvent)="addItem($event)"></app-item-output>
+<!-- #enddocregion output-parent -->
+<h3>Parent component receiving value via @Output()</h3>
+
+<ul>
+  <li *ngFor="let item of items">{{item}}</li>
+</ul>
+
+<hr>
+
+<h2>Input and Output together</h2>
+<p>Open the console to see the EventEmitter at work when you click Delete.</p>
+
+<!-- #docregion together -->
+<app-input-output [item]="currentItem" (deleteRequest)="crossOffItem($event)"></app-input-output>
+<!-- #enddocregion together -->
+
+<hr>
+
+<h2>Input and Output in the component class metadata</h2>
+<p>Open the console to see the EventEmitter at work when you click Buy.</p>
+
+<app-in-the-metadata [clearanceItem]="lastChanceItem" (buyEvent)="buyClearanceItem($event)"></app-in-the-metadata>
+
+
+<hr>
+
+<h2>Aliasing Inputs and Outputs</h2>
+<p>See aliasing.component.ts for aliases and the console for the EventEmitter console logs.</p>
+
+<app-aliasing [saveForLaterItem]="currentItem" (saveForLaterEvent)="saveForLater($event)" [wishListItem]="currentItem" (wishEvent)="addToWishList($event)"></app-aliasing>
+
+<h2>Wishlist:</h2>
+<ul>
+  <li *ngFor="let wish of wishlist">{{wish}}</li>
+</ul>
+

aio/content/examples/inputs-outputs/src/app/app.component.spec.ts

@@ -0,0 +1,27 @@
+import { TestBed, async } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+  it(`should have as title 'app'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app');
+  }));
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!');
+  }));
+});

aio/content/examples/inputs-outputs/src/app/app.component.ts

@@ -0,0 +1,55 @@
+
+// #docplaster
+
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+
+// #docregion parent-property
+// #docregion add-new-item
+export class AppComponent {
+// #enddocregion add-new-item
+  currentItem = 'Television';
+  // #enddocregion parent-property
+
+  lastChanceItem = 'Beanbag';
+// #docregion add-new-item
+  items = ['item1', 'item2', 'item3', 'item4'];
+// #enddocregion add-new-item
+  wishlist = ['Drone', 'Computer'];
+
+  // #docregion add-new-item
+
+  addItem(newItem: string) {
+    this.items.push(newItem);
+  }
+  // #enddocregion add-new-item
+
+
+  crossOffItem(item: string) {
+    console.warn(`Parent says: crossing off ${item}.`);
+  }
+
+  buyClearanceItem(item) {
+    console.warn(`Parent says: buying ${item}.`);
+  }
+
+  saveForLater(item) {
+    console.warn(`Parent says: saving ${item} for later.`);
+  }
+
+  addToWishList(wish: string) {
+    console.warn(`Parent says: adding ${this.currentItem} to your wishlist.`);
+    this.wishlist.push(wish);
+    console.warn(this.wishlist);
+  }
+// #docregion add-new-item
+// #docregion parent-property
+}
+// #enddocregion add-new-item
+// #enddocregion parent-property
+

aio/content/examples/inputs-outputs/src/app/app.module.ts

@@ -0,0 +1,28 @@
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+
+
+import { AppComponent } from './app.component';
+import { ItemDetailComponent } from './item-detail/item-detail.component';
+import { ItemOutputComponent } from './item-output/item-output.component';
+import { InputOutputComponent } from './input-output/input-output.component';
+import { InTheMetadataComponent } from './in-the-metadata/in-the-metadata.component';
+import { AliasingComponent } from './aliasing/aliasing.component';
+
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    ItemDetailComponent,
+    ItemOutputComponent,
+    InputOutputComponent,
+    InTheMetadataComponent,
+    AliasingComponent
+  ],
+  imports: [
+    BrowserModule
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

aio/content/examples/inputs-outputs/src/app/in-the-metadata/in-the-metadata.component.html

@@ -0,0 +1,3 @@
+<p>Latest clearance item: {{clearanceItem}}</p>
+
+<button (click)="buyIt()"> Buy it with an Output!</button>

aio/content/examples/inputs-outputs/src/app/in-the-metadata/in-the-metadata.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { InTheMetadataComponent } from './in-the-metadata.component';
+
+describe('InTheMetadataComponent', () => {
+  let component: InTheMetadataComponent;
+  let fixture: ComponentFixture<InTheMetadataComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ InTheMetadataComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(InTheMetadataComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/inputs-outputs/src/app/in-the-metadata/in-the-metadata.component.ts

@@ -0,0 +1,32 @@
+/* tslint:disable:use-input-property-decorator */
+/* tslint:disable:use-output-property-decorator */
+
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+
+@Component({
+  selector: 'app-in-the-metadata',
+  templateUrl: './in-the-metadata.component.html',
+  styleUrls: ['./in-the-metadata.component.css'],
+  // #docregion metadata
+  // tslint:disable: no-inputs-metadata-property no-outputs-metadata-property
+  inputs: ['clearanceItem'],
+  outputs: ['buyEvent']
+  // tslint:enable: no-inputs-metadata-property no-outputs-metadata-property
+  // #enddocregion metadata
+
+})
+export class InTheMetadataComponent  {
+
+
+  buyEvent = new EventEmitter<string>();
+  clearanceItem: string;
+
+  buyIt() {
+    console.warn('Child says: emiting buyEvent with', this.clearanceItem);
+    this.buyEvent.emit(this.clearanceItem);
+  }
+
+}
+
+/* tslint:enable:use-input-property-decorator */
+/* tslint:enable:use-output-property-decorator */

aio/content/examples/inputs-outputs/src/app/input-output/input-output.component.html

@@ -0,0 +1,2 @@
+<span [style.text-decoration]="lineThrough">Item: {{item}}</span>
+<button (click)="delete()">Delete it with an Output!</button>

aio/content/examples/inputs-outputs/src/app/input-output/input-output.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { InputOutputComponent } from './input-output.component';
+
+describe('InputOutputComponent', () => {
+  let component: InputOutputComponent;
+  let fixture: ComponentFixture<InputOutputComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ InputOutputComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(InputOutputComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/inputs-outputs/src/app/input-output/input-output.component.ts

@@ -0,0 +1,25 @@
+import { Component, Input, Output, EventEmitter } from '@angular/core';
+
+@Component({
+  selector: 'app-input-output',
+  templateUrl: './input-output.component.html',
+  styleUrls: ['./input-output.component.css']
+})
+export class InputOutputComponent {
+// #docregion input-output
+  @Input() item: string;
+// #docregion output
+  @Output() deleteRequest = new EventEmitter<string>();
+// #enddocregion output
+// #enddocregion input-output
+
+  lineThrough = '';
+
+  // #docregion delete-method
+  delete() {
+    console.warn('Child says: emiting item deleteRequest with', this.item);
+    this.deleteRequest.emit(this.item);
+    this.lineThrough = this.lineThrough ? '' : 'line-through';
+  }
+  // #enddocregion delete-method
+}

aio/content/examples/inputs-outputs/src/app/item-detail/item-detail.component.html

@@ -0,0 +1,8 @@
+<h2>Child component with @Input()</h2>
+
+<!-- #docregion property-in-template -->
+<p>
+  Today's item: {{item}}
+</p>
+<!-- #enddocregion property-in-template -->
+

aio/content/examples/inputs-outputs/src/app/item-detail/item-detail.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ItemDetailComponent } from './item-detail.component';
+
+describe('ItemDetailComponent', () => {
+  let component: ItemDetailComponent;
+  let fixture: ComponentFixture<ItemDetailComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ItemDetailComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ItemDetailComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/inputs-outputs/src/app/item-detail/item-detail.component.ts

@@ -0,0 +1,16 @@
+// #docplaster
+// #docregion use-input
+import { Component, Input } from '@angular/core'; // First, import Input
+// #enddocregion use-input
+
+@Component({
+  selector: 'app-item-detail',
+  templateUrl: './item-detail.component.html',
+  styleUrls: ['./item-detail.component.css']
+})
+
+// #docregion use-input
+export class ItemDetailComponent {
+  @Input() item: string; // decorate the property with @Input()
+}
+// #enddocregion use-input

aio/content/examples/inputs-outputs/src/app/item-output/item-output.component.html

@@ -0,0 +1,6 @@
+<h2>Child component with @Output()</h2>
+
+<!-- #docregion child-output -->
+<label>Add an item: <input #newItem></label>
+<button (click)="addNewItem(newItem.value)">Add to parent's list</button>
+<!-- #enddocregion child-output -->

aio/content/examples/inputs-outputs/src/app/item-output/item-output.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ItemOutputComponent } from './item-output.component';
+
+describe('ItemOutputComponent', () => {
+  let component: ItemOutputComponent;
+  let fixture: ComponentFixture<ItemOutputComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ItemOutputComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ItemOutputComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/inputs-outputs/src/app/item-output/item-output.component.ts

@@ -0,0 +1,22 @@
+// #docregion imports
+import { Component, Output, EventEmitter } from '@angular/core';
+// #enddocregion imports
+
+@Component({
+  selector: 'app-item-output',
+  templateUrl: './item-output.component.html',
+  styleUrls: ['./item-output.component.css']
+})
+
+// #docregion item-output-class
+export class ItemOutputComponent {
+// #docregion item-output
+
+  @Output() newItemEvent = new EventEmitter<string>();
+
+// #enddocregion item-output
+  addNewItem(value: string) {
+    this.newItemEvent.emit(value);
+  }
+}
+// #enddocregion item-output-class

aio/content/examples/inputs-outputs/src/index.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>Inputs and Outputs</title>
+  <base href="/">
+
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body>
+  <app-root></app-root>
+</body>
+</html>

aio/content/examples/inputs-outputs/src/main.ts

@@ -0,0 +1,12 @@
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule)
+  .catch(err => console.log(err));

aio/content/examples/inputs-outputs/stackblitz.json

@@ -0,0 +1,10 @@
+{
+  "description": "Inputs and Outputs",
+  "files": [
+    "!**/*.d.ts",
+    "!**/*.js",
+    "!**/*.[1,2].*"
+  ],
+  "file": "src/app/app.component.ts",
+  "tags": ["Inputs and Outputs"]
+}

aio/content/examples/ngcontainer/src/app/app.component.ts

@@ -4,7 +4,7 @@ import { Component } from '@angular/core';
 import { heroes } from './hero';
 
 @Component({
-  selector: 'my-app',
+  selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css']
 })

aio/content/examples/ngcontainer/src/index.html

@@ -6,7 +6,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
   <body>
-    <my-app>Loading...</my-apps>
+    <app-root>Loading...</app-root>
   </body>
 
 </html>

aio/content/examples/property-binding/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,54 @@
+import { browser, element, by } from 'protractor';
+
+
+describe('Property binding e2e tests', () => {
+
+  beforeEach(function () {
+    browser.get('');
+  });
+
+  it('should display Property Binding with Angular', function () {
+    expect(element(by.css('h1')).getText()).toEqual('Property Binding with Angular');
+  });
+
+  it('should display four phone pictures', function() {
+    expect(element.all(by.css('img')).isPresent()).toBe(true);
+    expect(element.all(by.css('img')).count()).toBe(4);
+
+  });
+
+  it('should display Disabled button', function () {
+    expect(element.all(by.css('button')).get(0).getText()).toBe(`Disabled Button`);
+  });
+
+  it('should display Binding to a property of a directive', function () {
+    expect(element.all(by.css('h2')).get(4).getText()).toBe(`Binding to a property of a directive`);
+  });
+
+  it('should display Your item is: lamp', function () {
+    expect(element.all(by.css('p')).get(0).getText()).toContain(`blue`);
+  });
+  it('should display Your item is: lamp', function () {
+    expect(element.all(by.css('p')).get(1).getText()).toContain(`Your item is: lamp`);
+  });
+
+  it('should display Your item is: parentItem', function () {
+    expect(element.all(by.css('p')).get(2).getText()).toBe(`Your item is: parentItem`);
+  });
+
+  it('should display a ul', function () {
+    expect(element.all(by.css('ul')).get(0).getText()).toContain(`tv`);
+  });
+
+  it('should display a ul containing phone', function () {
+    expect(element.all(by.css('ul')).get(1).getText()).toBe(`21 phone`);
+  });
+
+  it('should display one-time initialized string', function () {
+    expect(element.all(by.css('p')).get(3).getText()).toContain(`one-time initialized`);
+  });
+
+  it('should display Malicious content', function () {
+    expect(element.all(by.css('h2')).get(8).getText()).toBe(`Malicious content`);
+  });
+});

aio/content/examples/property-binding/src/app/app.component.css

@@ -0,0 +1,9 @@
+div {
+  margin: 1rem auto;
+  width: 90%
+}
+.special {
+  background-color: #1976d2;
+  color: #fff;
+  padding: 1rem;
+}

aio/content/examples/property-binding/src/app/app.component.html

@@ -0,0 +1,84 @@
+
+
+<div>
+  <h1>Property Binding with Angular</h1>
+  <h2>Binding the src property of an image:</h2>
+  <!-- #docregion property-binding -->
+  <img [src]="itemImageUrl">
+  <!-- #enddocregion property-binding -->
+  <h2>Using bind- syntax:</h2>
+  <!-- #docregion bind-prefix -->
+  <img bind-src="itemImageUrl">
+  <!-- #enddocregion bind-prefix -->
+  <hr />
+
+  <h2>Binding to the colSpan property</h2>
+  <table border=1>
+    <tr><td>Column 1</td><td>Column 2</td></tr>
+    <!-- #docregion colSpan -->
+    <!-- Notice the colSpan property is camel case -->
+    <tr><td [colSpan]="2">Span 2 columns</td></tr>
+    <!-- #enddocregion colSpan -->
+  </table>
+
+
+  <hr />
+  <h2>Button disabled state bound to isUnchanged property:</h2>
+  <!-- #docregion disabled-button -->
+  <!-- Bind button disabled state to `isUnchanged` property -->
+  <button [disabled]="isUnchanged">Disabled Button</button>
+  <!-- #enddocregion disabled-button -->
+  <hr />
+
+  <h2>Binding to a property of a directive</h2>
+  <!-- #docregion class-binding -->
+  <p [ngClass]="classes">[ngClass] binding to the classes property making this blue</p>
+  <!-- #enddocregion class-binding -->
+  <hr />
+
+  <h2>Model property of a custom component:</h2>
+  <!-- #docregion model-property-binding -->
+  <app-item-detail [childItem]="parentItem"></app-item-detail>
+  <!-- #enddocregion model-property-binding -->
+  <!-- #docregion no-evaluation -->
+  <app-item-detail childItem="parentItem"></app-item-detail>
+  <!-- #enddocregion no-evaluation -->
+
+  <h3>Pass objects:</h3>
+  <!-- #docregion pass-object -->
+  <app-list-item [items]="currentItem"></app-list-item>
+  <!-- #enddocregion pass-object -->
+
+  <hr />
+  <h2>Initialized string:</h2>
+  <!-- #docregion string-init -->
+  <app-string-init prefix="This is a one-time initialized string."></app-string-init>
+<!-- #enddocregion string-init -->
+
+  <hr />
+
+  <h2>Property binding and interpolation</h2>
+  <!-- #docregion property-binding-interpolation -->
+  <p><img src="{{itemImageUrl}}"> is the <i>interpolated</i> image.</p>
+  <p><img [src]="itemImageUrl"> is the <i>property bound</i> image.</p>
+
+  <p><span>"{{interpolationTitle}}" is the <i>interpolated</i> title.</span></p>
+  <p>"<span [innerHTML]="propertyTitle"></span>" is the <i>property bound</i> title.</p>
+  <!-- #enddocregion property-binding-interpolation -->
+
+  <hr />
+
+  <h2>Malicious content</h2>
+
+<!-- #docregion malicious-interpolated -->
+  <p><span>"{{evilTitle}}" is the <i>interpolated</i> evil title.</span></p>
+<!-- #enddocregion malicious-interpolated -->
+
+<!-- #docregion malicious-content -->
+  <!--
+  Angular generates a warning for the following line as it sanitizes them
+  WARNING: sanitizing HTML stripped some content (see http://g.co/ng/security#xss).
+ -->
+  <p>"<span [innerHTML]="evilTitle"></span>" is the <i>property bound</i> evil title.</p>
+<!-- #enddocregion malicious-content -->
+</div>

aio/content/examples/property-binding/src/app/app.component.spec.ts

@@ -0,0 +1,27 @@
+import { TestBed, async } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+  it(`should have as title 'app'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app');
+  }));
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!');
+  }));
+});

aio/content/examples/property-binding/src/app/app.component.ts

@@ -0,0 +1,30 @@
+import { Component } from '@angular/core';
+
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+  itemImageUrl = '../assets/phone.png';
+  isUnchanged = true;
+  classes = 'special';
+  // #docregion parent-data-type
+  parentItem = 'lamp';
+  // #enddocregion parent-data-type
+
+  // #docregion pass-object
+  currentItem = [{
+    id: 21,
+    name: 'phone'
+  }];
+  // #enddocregion pass-object
+
+  interpolationTitle = 'Interpolation';
+  propertyTitle = 'Property binding';
+
+  // #docregion malicious-content
+  evilTitle = 'Template <script>alert("evil never sleeps")</script> Syntax';
+  // #enddocregion malicious-content
+}

aio/content/examples/property-binding/src/app/app.module.ts

@@ -0,0 +1,24 @@
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+
+
+import { AppComponent } from './app.component';
+import { ItemDetailComponent } from './item-detail/item-detail.component';
+import { ListItemComponent } from './list-item/list-item.component';
+import { StringInitComponent } from './string-init/string-init.component';
+
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    ItemDetailComponent,
+    ListItemComponent,
+    StringInitComponent
+  ],
+  imports: [
+    BrowserModule
+  ],
+  providers: [],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

aio/content/examples/property-binding/src/app/item-detail/item-detail.component.html

@@ -0,0 +1,4 @@
+<p>Your item is: {{ childItem }} </p>
+
+
+

aio/content/examples/property-binding/src/app/item-detail/item-detail.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ItemDetailComponent } from './item-detail.component';
+
+describe('ItemDetailComponent', () => {
+  let component: ItemDetailComponent;
+  let fixture: ComponentFixture<ItemDetailComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ItemDetailComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ItemDetailComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

aio/content/examples/property-binding/src/app/item-detail/item-detail.component.ts

@@ -0,0 +1,26 @@
+import { Component, OnInit, Input } from '@angular/core';
+// import { Item } from '../item';
+// import { ITEMS } from '../mock-items';
+
+@Component({
+  selector: 'app-item-detail',
+  templateUrl: './item-detail.component.html',
+  styleUrls: ['./item-detail.component.css']
+})
+export class ItemDetailComponent implements OnInit {
+
+  // #docregion input-type
+  @Input() childItem: string;
+  // #enddocregion input-type
+
+  // items = ITEMS;
+
+
+  currentItem = 'bananas in boxes';
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+}

aio/content/examples/property-binding/src/app/item.ts

@@ -0,0 +1,7 @@
+// #docregion item-class
+export class Item {
+  id: number;
+  name: string;
+}
+// #enddocregion item-class
+

aio/content/examples/property-binding/src/app/list-item/list-item.component.html

@@ -0,0 +1,11 @@
+
+<h4>Nested component's list of items:</h4>
+<ul>
+  <li *ngFor="let item of listItems">{{item.id}} {{item.name}}</li>
+</ul>
+
+<h4>Pass an object from parent to nested component:</h4>
+<ul>
+  <li *ngFor="let item of items">{{item.id}} {{item.name}}</li>
+</ul>
+

aio/content/examples/property-binding/src/app/list-item/list-item.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ListItemComponent } from './list-item.component';
+
+describe('ItemListComponent', () => {
+  let component: ListItemComponent;
+  let fixture: ComponentFixture<ListItemComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ListItemComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ListItemComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});