refactor(): use const and let instead of var

modules/@angular/examples/core/animation/ts/dsl/e2e_test/animation_example_spec.ts

@@ -10,7 +10,7 @@ import {$, ExpectedConditions, browser, by, element} from 'protractor';
 import {verifyNoBrowserErrors} from '../../../../../_common/e2e_util';
 
 function waitForElement(selector: string) {
-  var EC = ExpectedConditions;
+  const EC = ExpectedConditions;
   // Waits for the element with id 'abc' to be present on the dom.
   browser.wait(EC.presenceOf($(selector)), 20000);
 }
@@ -19,7 +19,7 @@ describe('animation example', () => {
   afterEach(verifyNoBrowserErrors);
 
   describe('index view', () => {
-    var URL = '/core/animation/ts/dsl/';
+    const URL = '/core/animation/ts/dsl/';
 
     it('should list out the current collection of items', () => {
       browser.get(URL);

modules/@angular/examples/core/debug/ts/debug_element/debug_element.ts

@@ -8,8 +8,8 @@
 
 import {DebugElement} from '@angular/core';
 
-var debugElement: DebugElement;
-var predicate: any;
+let debugElement: DebugElement;
+let predicate: any;
 
 // #docregion scope_all
 debugElement.query(predicate);

modules/@angular/examples/core/di/ts/forward_ref/forward_ref_spec.ts

@@ -12,7 +12,7 @@ export function main() {
   describe('forwardRef examples', () => {
     it('ForwardRefFn example works', () => {
       // #docregion forward_ref_fn
-      let ref = forwardRef(() => Lock);
+      const ref = forwardRef(() => Lock);
       // #enddocregion
       expect(ref).not.toBeNull();
 
@@ -32,8 +32,8 @@ export function main() {
       // Only at this point Lock is defined.
       class Lock {}
 
-      let injector = ReflectiveInjector.resolveAndCreate([Door, Lock]);
-      let door = injector.get(Door);
+      const injector = ReflectiveInjector.resolveAndCreate([Door, Lock]);
+      const door = injector.get(Door);
       expect(door instanceof Door).toBeTruthy();
       expect(door.lock instanceof Lock).toBeTruthy();
       // #enddocregion
@@ -41,7 +41,7 @@ export function main() {
 
     it('can be unwrapped', () => {
       // #docregion resolve_forward_ref
-      let ref = forwardRef(() => 'refValue');
+      const ref = forwardRef(() => 'refValue');
       expect(resolveForwardRef(ref)).toEqual('refValue');
       expect(resolveForwardRef('regularValue')).toEqual('regularValue');
       // #enddocregion

modules/@angular/examples/core/ts/platform/platform.ts

@@ -14,6 +14,6 @@ import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
 class MyApp {
 }
 
-var myPlatformFactory = createPlatformFactory(platformBrowserDynamic, 'myPlatform');
+const myPlatformFactory = createPlatformFactory(platformBrowserDynamic, 'myPlatform');
 myPlatformFactory().bootstrapModule(MyApp);
 // #enddocregion