Object Creation Method

1. Create an object through JSON

2. New object first, and then add attributes and Methods. Disadvantages: a large number of repeated codes will be generated.

var people = new OBject();people.name =  "aaaa";people.getName = function(){     alert('get the name:' +this.name);} 

3. Object literal. disadvantage: a large number of repeated codes are generated.

var people = {    name: "aaaa",    getName: function(){        alert('get the name:'+this.name);    }}

4. Factory mode. disadvantage: the object type cannot be identified.

function  createFunction(name){      var o = new Object();       o.name = name;       o.getName = function(){            alert('get the name: '+this.name);       }
       return o;}    

5. constructor mode. Disadvantages: Method sharing is not allowed.

function  People(name){     this.name = name;     this.getName = function(){          alert('get the name '+this.name);     }}

6. prototype mode. Disadvantages: Some attributes do not need to be shared.

var Peopel = {}People.prototype = {    constructor:People,    name:"aaa",    getName:function(){         alert('the name is:' +this.name);          }}

7. Combined use of the constructor mode and prototype mode

function People(name){    this.name = name;}People.prototype = {    constructor:People;    getName: function(){         alert('the name is'+this.name);    }}

8. Dynamic Prototype mode. This is a better object creation mode.

1 function People(name){2      this.name = name;3      if(typeof this.getName != "function"){4            People.prototype.getName = function(){5                  alert('the name is:' +this.name);6            }7      }8 }