JS Object-oriented

Write code in the form of an object (simple and straightforward)

The common notation is called a procedural notation,

Object-oriented features

Abstraction (extracting the same thing or method);

Encapsulation (can only be used by objects in the method of the object);

Inheritance (re-use method);

An object-oriented basic notation

The composition of the object

Instance:

var arr= "";//Create an array, also an object

The variable under the Arr,number=10;//object is the property of the object

Test method under Arr.test=function () {//arr

alert (123);

}

Arr.test ();//Call the test method under Arr

alert (Arr,number); POPs the property value of the Number property under Arr

How are properties and methods resolved?

Attributes are only used, purely object-point attributes

Method whenever it is called, the parentheses are added

Object-oriented instances:

Var obj=new object ();//Create an empty object equivalent to obj={}

Obj.name= "Xiao Ming";

Obj.showname=function () {

Alert (1)

}

Factory mode (functional object-oriented)

Factory Mode: Encapsulation function

JS Object-oriented