标签:cal length function ret turn return ++ his apply
//改变this指向
var fn1 = {
add: function() {
var sum = 0;
for(var i=0;i<arguments.length;i++) {
sum += arguments[i];
}
console.log(sum);
return this.name;
}
};
var fn2 = {
name: ‘hello world‘
};
fn1.add.apply(fn2, [1,2,3]);
fn1.add.call(fn2, 4,5,6);
(fn1.add.bind(fn2, 7,8,9))();
标签:cal length function ret turn return ++ his apply
原文地址:http://www.cnblogs.com/huangtonghui/p/7221351.html