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原标题:Event triggering inside prototype
  • 时间:2010-06-05 13:42:21
  •  标签:
  • javascript

When I try to call "Test" function I get an error.
How to fix that? (no jquery!)

Browser:firefox
error:

类型: 测试不是功能

    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
        <title>Untitled Document</title>
        <script type="text/javascript">



            MyClass = function(){
            }

            MyClass.prototype = {

                Init: function(){
                    var txt = document.getElementById("text");

                    if (txt.addEventListener) {
                        txt.addEventListener("keyup", this.Foo, true)
                    }


                },

                Foo: function(){
                    this.Test();
                },

                Test: function(){
                    alert( OK );
                }


            }
            window.onload = function(){
                obj = new MyClass;
                obj.Init();
            }
        </script>
    </head>
    <body>
    <textarea id="text" rows="10">
    </textarea>
    </div>
</body>
最佳回答

这是因为你参考了<代码>。 Foo作为活动,实际发生的情况是,其复制件从物体范围、ergo this不能存在。 大多数人做的是利用匿名职能/对事件进行总结。

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