js call 以及apply

var aHello = {
    name : "hello",
    showName : function(){
        console.log(this.name);
        //console.log(this.tagName);
    }
}

document.querySelector(‘a‘).onclick = aHello.showName;

var aHello = {
    name : "hello",
    showName : function(){
        console.log(this.name);
    }
}

document.querySelector(‘a‘).onclick = function(){
    aHello.showName();
}

var aHello = {
    name : "hello",
    showName : function(){
        console.log(this.name);
    }
}

document.querySelector(‘a‘).onclick = aHello.showName.bind(aHello);

var aHello = {
    name : "hello",
    setYourAge : function(name,age){
       console.log(name);
       console.log(age);
    }
}

document.querySelector(‘a‘).onclick = aHello.setYourAge.call(aHello,‘王佳欣‘,25);

aHello.setYourAge.call(aHello,‘王佳欣‘,25);
aHello.setYourAge.apply(aHello,[‘王佳欣‘,25]);
aHello.setYourAge(‘王佳欣‘,25);

var aHello = {
    name : "hello",
    setYourAge : function(name,age){
       console.log(name);
       console.log(age);
    }
}

document.querySelector(‘a‘).onclick = aHello.setYourAge.bind(aHello,‘王佳欣‘,25);

aHello.setYourAge.call(aHello,‘王佳欣‘,25);
aHello.setYourAge.apply(aHello,[‘王佳欣‘,25]);
aHello.setYourAge(‘王佳欣‘,25);

/*通用验证对象*/
var validator = {
    validateName : function(){
         console.log(this.name);
    },
    validateAge  : function(){
         console.log(this.age)
    }
    //.....
}

/*对象kobe*/
var kobe = {
    name : ‘kobe bryant‘,
    age  : -1
}

/*对象 allen*/ 
var allen = {
    name : ‘allen iverson‘,
    age  : 10
}

var isKobeAgeValid = validator.call(kobe);

var isAllenAgeValid = validator.call(allen);