公开闭包内部的方法 [英] Exposing a method which is inside a closure

问题描述

当我们在闭包内部创建方法时，该闭包将成为该闭包的私有属性，并且只有在以某种方式公开该闭包之后才能对其进行访问。

When we are creating a method inside a closure it becomes private to that closure and can't be accessed until we expose it in some way.

怎么做

推荐答案

您可以返回对其的引用...

You can return a reference to it...

var a = function() {

   var b = function() {
      // I'm private!
      alert('go away!');
   };

   return {
      b: b // Not anymore!
   };

};

在jsFiddle上查看。

您还可以将其绑定到窗口对象。但是我更喜欢上面的方法，否则您将通过全局变量（它是 window 对象的属性）来公开它。

You could also bind it to the window object. But I prefer the method above, otherwise you are exposing it via a global variable (being a property of the window object).

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