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设置对象的原型
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Object.creacte( proto[, propertiesObject] )
proto: 一个对象，作为新创建对象的原型
propertiesObject: 对象属性定义
var landRover = {
name: "landRover",
start: function () {
console.log("%s start", this.logo);
},
run: function () {
console.log("%s running", this.logo);
},
stop: function () {
console.log("%s stop", this.logo);
}
}
var landWind = Object.create(landRover);
landWind.logo = "landWind";var landCruiser = Object.create(landRover); landCruiser.logo = "landCruiser"; landWind.start(); -
构造函数创建对象
function Car(logo) { this.logo = logo || "unknow name"; } Car.prototype = { name: "landRover", start: function () { console.log("%s start", this.logo); }, run: function () { console.log("%s running", this.logo); }, stop: function () { console.log("%s stop", this.logo); } } var landWind = new Car("landWind"); var landCruiser = new Car("landCruiser"); landWind.start();
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原型链
//Car 构造函数 function Car(logo) { this.logo = logo || "unknow name"; } //设置Car的prototype属性 Car.prototype = { start: function() { console.log("%s start", this.logo); }, run: function() { console.log("%s running", this.logo); }, stop: function() { console.log("%s stop", this.logo); } }; //landRover构造函数 function LanderRover(serialno) { this.serialNumber = serialno; } //设置LandRover的prototype属性 LanderRover.prototype = new Car("landRover"); //创建LandRover对象 var landRover1 = new LanderRover(10000); var landRover2 = new LanderRover(10001);
原型链.png
