JS对象的几种创建方式

Posted 2020-10-26 qian21

1、工厂模式创建对象

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(‘Qian‘,21,‘student‘);
var person2 = createPerson(‘Qian1‘,20,‘student‘);

2、构造函数创建对象

function Person(name,age,job){
    this.name = name;
    this.age = age;
    this.job = job;
    this.sayName = function(){
        alert(this.name);
    };        
}

var person1 = createPerson(‘Qian‘,21,‘student‘);
var person2 = createPerson(‘Qian1‘,20,‘student‘);

3、Object构造函数创建

var Person = new Object();
Person.name = ‘Qian‘;
Person.age = 21;