javascript/javascript-based/namespace/namespace1.HTML at master · zwcoding/javascript

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <title> 自动嵌套命名空间 </title>
  <meta name="Generator" content="Vbooking System">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 </head>
 <body>
 单一全局变量
 <script type="text/javascript">
 var myApplication =  (function () { 
        function(){
            //...
        },
        return{
            //...
        }
})();
 </script>
 
 前缀命名空间
 <script type="text/javascript">
	var myApplication_propertyA = {};
	var myApplication_propertyB = {};
	function myApplication_myMethod(){ 
	  //...
	}
 </script>
 
 我们就简单的介绍过IIFE (即时调用的函数表达式) ，它是一个未命名的函数，在它被定义之后就会立即执行。
 如果听起来觉得耳熟，是因为你以前遇到过并将它称之为自动生效的（或者自动调用的）匿名函数，然而我个人更认为 Ben Alman的 IIFE 命名更准确。在JavaScript中，因为在一个作用域中显示定义的变量和函数只能在作用域中可见，
 函数调用为实现隐私提供了简单的方式。
 
  <script type="text/javascript">
	  // an (anonymous) immediately-invoked function expression
	(function () { /*...*/})();

	// a named immediately-invoked function expression
	(function foobar () { /*..*/}());

	// this is technically a self-executing function which is quite different
	function foobar () { foobar(); }
  </script>
 嵌套命名空间
  <script type="text/javascript">
    var application = {
      utilities:{
          drawing:{
              canvas:{
                  2d:{
                          //...
                  }
              }
          }
    }        
};
  </script>  
 </body>
</html>

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