链式封装与调用

var CheckObject = function(){};
CheckObject.prototype = function(){checkName:function(){// codereturn this;},checkEmail:function(){// code return this;},checkPassword:function(){// codereturn this;}
}
//使用
var Check = new CheckObject()
Check.checkName().checkEmail().checkPassword();

原型上链式添加方法与链式调用

Function.prototype.addMethod = function(name,fn){this.prototype[name] = fn;return this;
}
var Methods = function(){};
Methods.addMethod（"checkName",function(){// code
}).addMethod("checkEmail",function(){// code
})
// 使用
var Check = new Methods()
Check.checkName()