Object creation and invocation code example

One . Literal creation

1. establish

The properties or methods inside take the form of key value pairs key Property name : value Property value

var obj={
    
 name:' Zhang San ',
 age:18,
 sex:' male ',
 sayHi:function(){
    
    console.log(' Hello ');
 }
}

2. call

console.log(obj.name);
console.log(obj['age'];
obj.sayHi();

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Two .new Object

1. establish

var obj=new Object();
obj.name=' Zhang Sanfeng ';
obj.sex=' male ';
obj.age=18;
obj.sayHi=function(){
    
    console.log(' Hello ');
}

2. call

 console.log(obj.name);
 console.log(obj['sex']);
 obj.sayHi();

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3、 ... and . Constructors

1. establish

function Star(){
    
this.name=name;
this.sex=sex;
this.age=age;
this.sing=function(sang){
    
   console.log(sang);
  }
}

2. call

var ldh=new Star(' Li Denghui ', 18, ' male ');
console.log(ldh.name);
console.log(ldh.sex);
ldh.sing(' Ice rain ');
var zxy=new Star(' Jacky Cheung ', 19, ' male ')  
console.log(zxy['name']);
console.log(zxy['age']);
zxy.sing(' Li Xianglan ');