设计模式

Constructor构造函数模式

1.创建对象

  var object = new Object();
  var object = {
    key1: 'value1',
    key2: 'value2'
  };
  object.somekey = 'somvalue';

2.基本构造器Constructor

function Car(model, year, miles){
  this.model = model;
  this.year = year;
  this.miles = miles;
  this.toString = function() {
    return this.model + 'has done' + this.miles;
  }
}
var civic = new Car('Honda Civic', 2009, 20000);

缺点：toString在每个示例之间是没有共享的，单独拥有自己的方法。

3.带原型的构造器

function Car(model, year, miles){
  this.model = model;
  this.year = year;
  this.miles = miles;
}
Car.prototype.toString = function() {
  return this.model + 'has done' + this.miles;
}
var civic = new Car('Honda Civic', 2009, 20000);

现在实例之间共享此方法

Moudle（模块）模式