JAVASCRIPT 专业四级：这几个问题，你会做几个？

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This topic created in 3959 days ago, the information mentioned may be changed or developed.

1. "1" - - "1";
2. new Array(5).toString();
3.
var x = 0;
function foo() {
x++;
this.x = x;
return foo;
}
var bar = new new foo;
console.log(bar.x);
4.
var bar = 1,
foo = {};

foo: {
bar: 2;
baz: ++bar;
};
foo.baz + foo.bar + bar;
5.
function foo(a, b) {
arguments[1] = 2;
console.log(b);
}
foo(1);
6. (true + false) > 2 + true;

foo

var

function

17 replies • 2015-07-12 20:34:48 +08:00

zhujinliang

Jul 1, 2015

chrome console加google终于弄明白了。。。感谢楼主分享

hahasong

Jul 1, 2015

反对任何滥用语言的灵活性，生产环境写这种东西真的是作死

101

Jul 1, 2015

第六题还能这么玩......

mhycy

Jul 1, 2015

这种应试题有什么意义么？

shreksu

Jul 1, 2015

然并卵

latelx

Jul 1, 2015

格式太差。。。。

datou552211

Jul 1, 2015 via iPhone

会写二叉树嘛

snailsir

Jul 1, 2015

有没有专业六级的

newghost

Jul 1, 2015

@snailsir

专业八级

http://ourjs.com/detail/52fb82e13bd19c4814000001

snailsir

Jul 1, 2015

@newghost 跪了

bramblex

Jul 1, 2015

楼主把下面这段JavaScript代码解释一遍再说吧：

[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+(![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+[+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]])()