JavaScript-Object Oriented

1-4 how objects are created

property is the characteristic of the object, and method is the behavior of the object.

1. Object literals

var o = {  name: ‘zs‘,  age: 18,  sex: true,  sayHi: function () {    console.log(this.name);  }};  

2. Create object with new Object ()

var person = new Object();  person.name = ‘lisi‘;  person.age = 35;  person.job = ‘actor‘;  person.sayHi = function(){  console.log(‘Hello,everyBody‘);}

3. Factory function Creation Object

function createPerson(name, age, job) {  var person = new Object();  person.name = name;  person.age = age;  person.job = job;  person.sayHi = function(){    console.log(‘Hello,everyBody‘);  }  return person;}var p1 = createPerson(‘allen‘, 22, ‘actor‘);

4. Custom constructors

function Person(name,age,job){  this.name = name;  this.age = age;  this.job = job;  this.sayHi = function(){    console.log(‘Hello,everyBody‘);  }}var p1 = new Person(‘allen‘, 22, ‘actor‘);

5. Work when the new keyword is executed

1. Creates an object in memory.
2. Let this point to this new object.
3. Execute constructor: Adds properties and methods to this new object.
4. Returns the new object.

JavaScript-Object Oriented