javascript中new关键字详解(2)

//one var user = function(){ this.name=""; this.id=""; }; user.add = function(){ console.log("add"); }; user.delete = function(){ console.log("delete"); }; user.prototype = user; window.user = new user();

第二种方式不使用new关键字直接将user对象暴露到window对象中

//two var user = { name:"", id:"" }; user.add = function(){ console.log("add"); }; user.delete = function(){ console.log("delete"); }; window.user = user;

使用

<button>增加</button> <button>删除</button>

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