Summary of JavaScript object oriented implementation methods

The example in this paper summarizes the object-oriented implementation of JavaScript. Share with you for your reference. The specific analysis is as follows:

Method 1:

var person = {
 name: 'hello world',
 age: 22,
 sayHello:function(){
  alert('I\'m 'this.name ',and I\'m ' this.age 'years old');
 }
};
person.sayHello();//I'm hello world, and I'm 22 years old

Method 2:

window.color = "red";
var o = { color: "blue"};
function sayColor(){
  alert(this.color);
}
sayColor(); //"red"
o.sayColor = sayColor;
o.sayColor(); //"blue"
// You can also use apply and call
sayColor.apply(o);//"blue"
sayColor.call(o);//"blue"

I hope this article has been helpful to your javascript programming.