如何创建公共和私人会员？ [英] How to create public and private members?

问题描述

我有点困惑，我怎样才能创建公共和私人会员。

I'm a bit confused, how can I create public and private members.

到目前为止，我的代码模板如下：

My code template so far is like:

(function()){
   var _blah = 1;

   someFunction = function() {
     alert(_blah);
   };

   someOtherFunction = function() {
     someFunction();
   }
}();

推荐答案

您可能想要使用 Yahoo Module Pattern ：

myModule = function () {

    //"private" variables:
    var myPrivateVar = "I can be accessed only from within myModule."

    //"private" method:
    var myPrivateMethod = function () {
        console.log("I can be accessed only from within myModule");
    }

    return {
        myPublicProperty: "I'm accessible as myModule.myPublicProperty."

        myPublicMethod: function () {
            console.log("I'm accessible as myModule.myPublicMethod.");

            //Within myProject, I can access "private" vars and methods:
            console.log(myPrivateVar);
            console.log(myPrivateMethod());
        }
    };
}();

您定义的私人会员 myPrivateVar 和 myPrivateMethod 已定义，您的公共成员 myPublicProperty 和 myPublicMethod 已定义。

You define your private members where myPrivateVar and myPrivateMethod are defined, and your public members where myPublicProperty and myPublicMethod are defined.

您可以按如下方式访问公共方法和属性：

You can simply access the public methods and properties as follows:

myModule.myPublicMethod();    // Works
myModule.myPublicProperty;    // Works
myModule.myPrivateMethod();   // Doesn't work - private
myModule.myPrivateVar;        // Doesn't work - private

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