refactor(): use const and let instead of var

modules/benchmarks/src/old/compiler/compiler_benchmark.ts

@@ -21,7 +21,7 @@ import {CompilerConfig, DirectiveResolver} from '@angular/compiler';
 import {getIntParameter, bindAction} from '@angular/testing/src/benchmark_util';
 
 function _createBindings(): any[] {
-  var multiplyTemplatesBy = getIntParameter('elements');
+  const multiplyTemplatesBy = getIntParameter('elements');
   return [
     {
       provide: DirectiveResolver,
@@ -42,7 +42,7 @@ function _createBindings(): any[] {
 export function main() {
   BrowserDomAdapter.makeCurrent();
   bootstrap(CompilerAppComponent, _createBindings()).then((ref) => {
-    var app = ref.instance;
+    const app = ref.instance;
     bindAction('#compileNoBindings', measureWrapper(() => app.compileNoBindings(), 'No Bindings'));
     bindAction(
         '#compileWithBindings', measureWrapper(() => app.compileWithBindings(), 'With Bindings'));
@@ -51,13 +51,13 @@ export function main() {
 
 function measureWrapper(func, desc) {
   return function() {
-    var begin = new Date();
+    const begin = new Date();
     print(`[${desc}] Begin...`);
-    var onSuccess = function(_) {
-      var elapsedMs = new Date().getTime() - begin.getTime();
+    const onSuccess = function(_) {
+      const elapsedMs = new Date().getTime() - begin.getTime();
       print(`[${desc}] ...done, took ${elapsedMs} ms`);
     };
-    var onError = function(e) { DOM.logError(e); };
+    const onError = function(e) { DOM.logError(e); };
     PromiseWrapper.then(func(), onSuccess, onError);
   };
 }
@@ -74,9 +74,9 @@ class MultiplyDirectiveResolver extends DirectiveResolver {
   }
 
   private _fillCache(component: Type) {
-    var view = super.resolve(component);
-    var multipliedTemplates = new Array(this._multiplyBy);
-    for (var i = 0; i < this._multiplyBy; ++i) {
+    const view = super.resolve(component);
+    const multipliedTemplates = new Array(this._multiplyBy);
+    for (let i = 0; i < this._multiplyBy; ++i) {
       multipliedTemplates[i] = view.template;
     }
     this._cache.set(

modules/benchmarks/src/old/compiler/selector_benchmark.ts

@@ -13,41 +13,41 @@ import {bindAction, getIntParameter} from '@angular/testing/src/benchmark_util';
 
 export function main() {
   BrowserDomAdapter.makeCurrent();
-  var count = getIntParameter('selectors');
+  const count = getIntParameter('selectors');
 
-  var fixedMatcher;
-  var fixedSelectorStrings = [];
-  var fixedSelectors = [];
-  for (var i = 0; i < count; i++) {
+  let fixedMatcher;
+  const fixedSelectorStrings = [];
+  const fixedSelectors = [];
+  for (let i = 0; i < count; i++) {
     fixedSelectorStrings.push(randomSelector());
   }
-  for (var i = 0; i < count; i++) {
+  for (let i = 0; i < count; i++) {
     fixedSelectors.push(CssSelector.parse(fixedSelectorStrings[i]));
   }
   fixedMatcher = new SelectorMatcher();
-  for (var i = 0; i < count; i++) {
+  for (let i = 0; i < count; i++) {
     fixedMatcher.addSelectables(fixedSelectors[i], i);
   }
 
   function parse() {
-    var result = [];
-    for (var i = 0; i < count; i++) {
+    const result = [];
+    for (let i = 0; i < count; i++) {
       result.push(CssSelector.parse(fixedSelectorStrings[i]));
     }
     return result;
   }
 
   function addSelectable() {
-    var matcher = new SelectorMatcher();
-    for (var i = 0; i < count; i++) {
+    const matcher = new SelectorMatcher();
+    for (let i = 0; i < count; i++) {
       matcher.addSelectables(fixedSelectors[i], i);
     }
     return matcher;
   }
 
   function match() {
-    var matchCount = 0;
-    for (var i = 0; i < count; i++) {
+    let matchCount = 0;
+    for (let i = 0; i < count; i++) {
       fixedMatcher.match(fixedSelectors[i][0], (selector, selected) => { matchCount += selected; });
     }
     return matchCount;
@@ -59,18 +59,18 @@ export function main() {
 }
 
 function randomSelector() {
-  var res = randomStr(5);
-  for (var i = 0; i < 3; i++) {
+  let res = randomStr(5);
+  for (let i = 0; i < 3; i++) {
     res += '.' + randomStr(5);
   }
-  for (var i = 0; i < 3; i++) {
+  for (let i = 0; i < 3; i++) {
     res += '[' + randomStr(3) + '=' + randomStr(6) + ']';
   }
   return res;
 }
 
 function randomStr(len) {
-  var s = '';
+  let s = '';
   while (s.length < len) {
     s += randomChar();
   }
@@ -78,7 +78,7 @@ function randomStr(len) {
 }
 
 function randomChar() {
-  var n = randomNum(62);
+  const n = randomNum(62);
   if (n < 10) return n.toString();                        // 1-10
   if (n < 36) return StringWrapper.fromCharCode(n + 55);  // A-Z
   return StringWrapper.fromCharCode(n + 61);              // a-z