06/15 关键词

关键词

闭包函数 内存泄露 内存溢出

代码

<script type="text/javascript">

  //代码片段一
  var name = "The Window";
  var object = {
    name : "My Object",
    getNameFunc : function(){
      return function(){
        return this.name;
      };
    }
  };
  alert(object.getNameFunc()());  //?  the window

  //代码片段二
  var name2 = "The Window";
  var object2 = {
    name2 : "My Object",
    getNameFunc : function(){
      var that = this;
      return function(){
        return that.name2;
      };
    }
  };
  alert(object2.getNameFunc()()); //?  my object

</script>