JavaScript的级联函数用法简单示例【链式调用】

function Person() { this.name = ''; this.age = 0; this.weight = 10;}Person.prototype = { setName:function(name){  this.name = name;  return this; }, setAge:function(age){  this.age = age;  return this; }, setWeight:function(weight) {  this.weight = weight;  return this; }}var p = new Person();p.setName('Joh').setAge(26).setWeight(80);console.log(p); // {name: "Joh", age: 26, weight: 80}