JS对象

Posted 2021-02-04 Forever77

创建js对象的两种方式

1.直接创建对象实例，例如

person={firstname:"John",lastname:"Doe",age:50,eyecolor:"blue"}

2.使用函数来构造对象，然后通过new创建实例，例如

function person(firstname,lastname,age,eyecolor) { this.firstname=firstname; this.lastname=lastname; this.age=age; this.eyecolor=eyecolor; }

实例化person1=new person(‘Sally‘,‘Rally‘,48,‘green‘)

 

给对象添加属性：person1.hobby=‘tennis‘

给对象添加方法：person.name=function(){return this.firstname+‘ ‘+this.lastname}