Implementing the Extend () method in JavaScript

Source: Internet
Author: User

varMale ={sex:"Male"};varXiaoming ={name:"Xiaoming", School:"Xinhua"};object.defineproperty (Object.prototype,"Extend", {writable:true, enumrable:false, Configurable:true, Value:function(o) {//get all of your own properties, including non-enumerable attributes;        varNames =object.getownpropertynames (o); //traverse them         for(vari = 0, len = names.length; i < Len; i++) {            //if the attribute already exists, it is skipped;            if(Names[i]inch  This) {                Continue; }            //get the descriptor for the property in O            vardesc =object.getownpropertydescriptor (o, names[i]); //use it to create a property for thisObject.defineproperty ( This, Names[i], desc); }}); Xiaoming.extend (male); Console.log (xiaoming) ;

Implementing the Extend () method in JavaScript

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