<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title></title> </head> <body> <h1 style="text-align: center;">内容在控制台</h1> </body> <script type="text/javascript"> //创建构造函数 function Test(name){ this.name = name; this.xbc = '你瞅啥。'; this.hello = function(){ console.log('hello,'+this.xbc); } this.like = function(){ console.log(this.name+'喜欢瞅你。'); } } var isMe = new Test('XXX'); isMe.hello(); isMe.like(); // isMe.constructor === Test.prototype.constructor; // true // Test.prototype.constructor === Test; // true // Object.getPrototypeOf(isMe) === Test.prototype; // true // isMe instanceof Test; // true console.log(Test); console.log(isMe.constructor); console.log(Test.prototype.constructor); console.log(Test.prototype); console.log(Object.getPrototypeOf(isMe)); console.log(isMe instanceof Test); function Cat(param){ this.name = param.name||'匿名'; this.old = param.old||'保密'; this.address = param.address||'未知地区'; this.introduce = function(){ console.log('我叫'+this.name+',年龄'+this.old+',来自'+this.address+'。'); }; } var xiaobai = new Cat({name:'小白',address:'火星'}); var xiaohei = new Cat({name:'小黑',old:'1岁'}); var xiaohua = new Cat({name:'小花',old:'3岁',address:'金星'}); var niming = new Cat({old:'1岁半'}); xiaobai.introduce(); xiaohei.introduce(); xiaohua.introduce(); niming.introduce(); //查看 数组prototype方法 console.log(Array.prototype); //在数组原型链上添加构造函数 Array.prototype.myFun = function(){ console.log(this); var retArr = []; for(var i=0;i<this.length;i++){ if(this[i]%2 == 1){ retArr.push(this[i]); } } return retArr; }; Array.prototype.myJoin = function(str){ var str = str || ''; var retStr = ''; for(var i=0;i<this.length;i++){ if(i == this.length-1) retStr += this[i]; else retStr += this[i] + str; } return retStr; }; var arr = [1,2,3,4,5,6,7,8,9]; console.log(arr.myFun()); console.log(arr.myJoin()); console.log(arr.myJoin('+')); </script></html>原文转载：http://www.shaoqun.com/a/691741.html
acedota：https://www.ikjzd.com/w/2070
跨境通网站：https://www.ikjzd.com/w/1329
<!DOCTYPEhtml><html><head><metacharset="utf-8"><title></title></head><body><h1style="text-align:center;">内容在控制台</h1><
c88是什么：https://www.ikjzd.com/w/1017.html
i号店：https://www.ikjzd.com/w/2263
sgshop：https://www.ikjzd.com/w/1982
如何通过亚马逊数据分析工具有效分析竞争对手？ ：https://www.ikjzd.com/home/19037
给力！中国邮政与华为结为全面战略合作伙伴！：https://www.ikjzd.com/home/97370
Shopify第三季度继续保持强劲增长 平台卖家超100万！：https://www.ikjzd.com/home/109669
