JavaScript中call、apply个人理解

JavaScript中call、apply个人理解

一句话即通俗的说：call、apply 是为了改变this的状态而存在的

    var lisi = {name:'李四',age:23};
var zs = {name:'张三',age:100}
    function personInfo(name,age){
this.name = name;
this.age = age;
    }

    personInfo.prototype = {
        showInfo:function(){
            console.log('我是'+this.name+','+'今年'+this.age+'岁。');
        }
    }
var p = new personInfo('王五',23);
    p.showInfo.apply(lisi);
    p.showInfo.call(lisi);
    p.showInfo.apply(zs);
    p.showInfo.call(zs);

结果：