javascript 面试

一道javascript面试题

function foo(){abc = function(){ alert("a") }this.abc = function(){ alert("this.abc")}foo.abc = function(){ alert("foo.abc") }}foo.prototype.abc=function(){ alert("properties") }foo.abc = function(){alert("asdfasdfas")}var obj = new foo();obj.abc();foo.abc();abc();

 

呵呵 揣测下 结果

平时光用javascript 倒是没有关注一些问题