javascript设计模式系列一

function checkName() { }
function checkEmail()) { }
function checkPassword() { }

var checkName=function(){}
var checkEmail=function(){}
var checkPasswork=function(){}

var checkObject={
    checkName:function(){},
    checkEmail:function(){},
    checkPassword:function(){}
}

var checkObject = function () { }
checkObject.checkName = function () { return this; }
checkObject.checkEmail = function () { return this; }
checkObject.checkPassword = function () { return this; }

var checkObject = function () {
    return {
        checkName: function () { },
        checkEmail: function () { },
        checkPassword: function () { }
    }
}
var obj= checkObject();
obj.checkName();

var checkObject = function () {
    this.checkName = function () { };
    this.checkEmail = function(){ };
    this.checkPassword = function(){ };
}
var obj = new checkObject();
obj.checkName();

var checkObject = function () { }
checkObject.checkName = function () { }
checkObject.checkEmail = function () { }
checkObject.checkPassword = function(){ }

var checkObject = function () {
    return {
        checkName: function () { },
        checkEmail: function () { },
        checkPassword: function () { }
    }
}

var checkObject = function () { }
checkObject.checkName = function () { return this; }
checkObject.checkEmail = function () { return this; }
checkObject.checkPassword = function(){ return this; }

var checkObject = function () {
    return {
        checkName: function () { return this; },
        checkEmail: function () { return this; },
        checkPassword: function () { return this; }
    }
}