javascript 中call,apply的用法

call跟apply说白来,就是把另外一个对象的this,传给当前对象的this ,但是apply跟call的区别是在传入参数的区别,他们两第一参数都是另外一个对象,第二个参数就不同来,


var walk = new function(){this.road = "yuhua road"};

var newwalkman = function (roadname){

  var road = "xinhua road";

   alert(this.road);

alert(roadname);

}

newwalkman.call(walk,"jianhua road");

 

可以参考 http://www.cnblogs.com/treasurelife/archive/2008/03/05/1092251.html

 

posted @ 2015-10-26 16:58  terryc  阅读(153)  评论(0编辑  收藏  举报