创建对象的方式

工厂模式,创建方式

function createPerson(name,age,job){
    var o = new Object();
    o.name=name;
    o.age=age;
    o.job=job;
    o.sayName = function(){
        alert(this.name);
    }
　　return o
}
var person1 = createPerson("da",1,"it");
var person2 = createPerson("dada",2,"it");

构造函数模式

function Person(name,age,ob){
    this.name=name;
    this.age=age;
    this.job=job;
    this.sayName = function(){
        alert(this.name);
    }
var person1 = new Person("dada",1,"web");
var person2 = new Person("dada",2,"web");

使用原型模式

function Person(){
}
Person.prototype.name = "da";
Person.prototype.age = 1;
Person.prototype.job = "web";
Person.prototype.sayName = function(){
    alert(this.name);
}
 
var person1 = new Person();
person1.sayName();    //"da"
 
var person2 = new Person();
person2.sayName();    //"da"
 
alert(person1.sayName == person2.sayName);   //true

组合使用构造函数模式和原型模式

function Person(name,age){
    this.name = name;
    this.age = age;
    this.friends = ["da","dada"];
}
Person.prototype = {
    constructor:Person,
    sayName:function(){
        alert(this.name);
    }
}
var person1 = new Person("da1",1);
var person2 = new Person("da2",2);
person1.friends.push("dadada");

JavaScript对象的创建方式，1，Object构造函数式，2，对象字面量式,3，工厂模式,4，安全工厂模式，5，构造函数模式，6，原型模式，7，混合构造函数和原型模式，8，动态原型模式，9，寄生构造函数模式，10，稳妥构造函数模式。