1.类扩展 /* EditInPlaceField类 */ /* 扩展函数 */ function extend(subClass, superClass) { var F = function() {}; F.prototype = superClass.prototype; subClass.prototype = new F(); subClass.prototype...

文章 2022-02-16 来自：开发者社区

JS里的prototype对JS类(方法,函数,function)进行一个扩展吧!

我们知道C#里有继承,类也有扩展方法,而在JS世界有是否也有相似的概念和功能实现呢,答案是肯定的,现在我来和大家一起聊聊这方面的知识吧!:P <script type="text/javascript"> // 注意,prototype只对本script段起作用 // prototype原型关键字,为一个JS原对象扩展一个方法 ...

问答 2016-06-01 来自：开发者社区

Javascript，一个通用的实现类继承的函数

var A = function() { this.a = 3; } var B = function() { this.b = 6; } function ext(A, B) { var subclass = B; //構造一個新的同名類類,用他來繼承父類,並且調用子類都構造函數 var B = function() { A.apply...

文章 2015-03-20 来自：开发者社区

javascript中如何让类工厂和构造函数变成同一个函数

我们知道在js中可以用一个函数来定义对象的类，该函数称之为对象的构造函数，我们在需要create对象的时候直接调用这个构造函数即可： var Man = funciton(name){ this.name = name; }; var man = new Man("hopy"); 如上所示man对象的类是Man，因为有： Object.getPrototypeOf(...

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