本文实例讲述了JS仿Base.js实现的继承。分享给大家供大家参考，具体如下：

var Klass = function() {};Klass.extendClass = (function() { var F = function() {}; return function(C, P) { F.prototype = P.prototype; C.prototype = new F(); C.uper = P.prototype; C.prototype.constructor = C; };})();Klass.extend = function(props) { var _slice = Array.prototype.slice; var Glass = function() { if (Glass.prototype.hasOwnProperty("init")) { Glass.prototype.init.apply(this, _slice.call(arguments)); } }; Klass.extendClass(Glass, this); Glass.extend = this.extend; for (var key in props) { if (props.hasOwnProperty(key)) { Glass.prototype[key] = props[key]; } } return Glass;};

example:

var A = Klass.extend({ init: function(name) { this.name = name; console.log('A constructor is running!'); }, getName: function() { return this.name; }});var B = A.extend({ init: function(name) { this.name = name; console.log('B constructor is running!'); }, getName: function() { return this.name; }, a: 'b'});var C = B.extend({ init: function(name) { console.log('C constructor is running!'); }, c: 'c', getName: function() { var name = C.uper.getName.call(this); return 'Hi, I\'m' + this.name; }});var c1 = new C('zlf');console.log(c1.getName());

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希望本文所述对大家JavaScript程序设计有所帮助。