#ecmascript 5

#AngularJS - Add #service in #angular2 with #ES5 #angular2 #javascript @AngularTutorial @LearnAngularJS

Click here to learn how to add data binding in angular js 2.0 In this tutorial, i will show how to add a service using ES5.  Create a new file for service which you want to add (ex : UserService.js in our scenario) UserService.js var UserService = function() {}; UserService.prototype.getInitialInfo = function() { return { first_name : "", last_name : "", phone: "", email_address : "" }; } In this…

#angular2 - Data #binding in #angular JS 2.0 with #ES5 #javascript @AngularTutorial @LearnAngularJS #AngularJS

Click here to learn about adding multiple view with Angular JS 2.0 and ES5 If you follow the tutorial above, the index.html files remain same and it doesn’t change this file much. index.html Hello Angular 2 To get started with the userForm.html file, Lets create a new file userForm.html and i will be adding appropriate user information to get the user details (ie. First Name, Last Name, email…

@angularjs 2.0 - Adding #Multiple views in angular JS 2.0 with #ES5 #AngularJS #html5 #javascript @LearnAngularJS

Click here to get started with Angular JS 2.0 Once you are done with the basic tutorial, you can add a new view by following way: In Index.html, add a new element with a name.  As mentioned below “userForm”. index.html Hello Angular 2 Now in app.js, define a new view and add proper annotations similar to HelloAngular.  We have used UserForm and assigned annotations like Component to set selector…

How to provide ECMAScript 5 (ES 5)-shim?

ECMAScript Fifth Edition (released December 2009) introduces a bunch of new methods (see this table for details). However, there still are older browsers out there which do not implement those new methods.

Luckily, there exists a convenient script (written in JavaScript) – ES5-shim – which implements those methods manually in environments where they don’t exist.

However, I am not sure how to…

### 1.Strict Mode简介 Strict Mode是ECMAScript 5中引入的新特性。使得ECMAScript 5在向后兼容ECMAScript 3的同时，允许显式地声明不兼容ECMAScript 3中Deprecated的语法。 ### 2.使用Strict Mode： 有两种方式来声明使用Strict Mode： 1.在Script开头声明全局使用Strict Mode

"use strict"; // your code here ...

2.在函数开头声明局部使用Strict Mode：

// non-strict code... function strictInside(){ "use strict"; // your code here... } // non-strict code...

3.最佳实践 在实践中，通常不使用全局的Strict Mode，因为在Script合并、压缩之后，Strict Mode会应用到所有Script，容易导致第三方的非Strict Mode脚本出错。所以通常采用局部Strict Mode：

// non-strict code... (function(){ "use strict"; // define your lib here. })(); // non-strict code...

### 3.Strict Mode中的限制 1.不能隐式的声明全局变量。

(function() { "use strict"; foo = "bar"; //Error //ReferenceError: foo is not defined })();

2.不能删除局部变量、函数或函数参数。

(function() { "use strict"; var foo = "test"; function bar(){} delete foo; // Error delete bar; // Error function test(arg) { delete arg; // Error } })(); //SyntaxError: Delete of an unqualified identifier in strict mode.

3.对象字面量中，不能重复定义属性。

(function() { "use strict"; var foo = { bar: true, bar: false } //Error })(); //SyntaxError: Duplicate data property in object literal not allowed in strict mode

3.不能覆盖eval、arguments。

(function() { "use strict"; var eval = function() {}; // Error var arguments = ['foo', 'bar']; //Error })(); //SyntaxError: Variable name may not be eval or arguments in strict mode (function(eval, arguments) { "use strict"; })(); //SyntaxError: Parameter name eval or arguments is not allowed in strict mode

4.函数参数不能重名。

"use strict"; function foo(bar, bar) {} //Error //SyntaxError: Strict mode function may not have duplicate parameter names

5.不能访问arguments.caller和arguments.callee

(function() { "use strict"; var caller = arguments.caller; //Error var callee = arguments.callee; //Error })(); //TypeError: 'caller', 'callee', and 'arguments' properties may not be accessed on strict mode functions or the arguments objects for calls to them

6.不能使用with语句。

function() { "use strict"; var foo = {bar : "bar"}; with(foo) { console.log(bar); }; //SyntaxError: Strict mode code may not include a with statement }