时间:14-02-25 栏目:Javascript 作者:zongyan86 评论:0 点击: 3,694 次
本文标签: javascript javascript面试题
1.
var name = 'web开发分享'; function func() { var id = 'www.kuaipao8.com'; function alertId() { alert(id); } alertId(); } alert(name); //答案:web开发分享 alert(id); //答案:错误 func(); //答案:www.kuaipao8.com alertId(); //答案:错误
2.
var a = 8; setTimeout(function () { alert(a); a = 88; }, 1000); a = 888; 答案:888
3.
var value; var A = function() { setTimeout(function() { value = 10; }, 200); } var B = function() { alert(value); } A(); B(); //答案:undefine
4.
function test(obj1, obj2, obj3) { alert([].slice.call(arguments,2)); } test("liwei", "liwei2","我开"); 答案:"我开"
5.
alert(0.1 + 0.2 === 0.3); 答案:false
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