JavaScript-DesignPatterns/Prototype/Prototype.js at master · LenkasetSong/JavaScript-DesignPatterns

47 lines (38 loc) · 895 Bytes

var prototype = {

name: 'Reaper',

hobby: {

love: '123'

getName: function() {

return this.name;

}

var obj = Object.create(prototype,

{

skill: {value: 'FE'}

}

)

console.log(obj.getName()); //Reaper

console.log(obj.skill); // FE

console.log(obj.__proto__ === prototype); //true

Object.create

let proto = {a:1}

let propertiesObject = {

b: {

value: 2

}

let obj = Object.create(proto, propertiesObject)

console.log(obj.__proto__ === proto); // true

// 方法继承

let proto = function() {}

proto.prototype.excute = function() {}

let child = function() {}

// 让child 继承proto的所有原型方法

child.prototype = new proto()

// 所有函数默认继承Object

let Foo = function() {}

console.log(Foo.prototype.__proto__ === Object.prototype); // true

// isPrototypeOf

// prototypeObj 是否在obj的原型链上

prototypeObj.isPrototypeOf(obj)

Provide feedback