有没有& Javascript中的逻辑运算符 [英] Is there a & logical operator in Javascript

问题描述

我想知道是否有& Javascript中的逻辑运算符。我试过跑1& 0和1&&在Firebug（Firefox）中为0，两者都返回0。

I was wondering if there is a "&" logical operator in Javascript. I tried running 1 & 0 and 1 && 0 in Firebug(Firefox) and it returned a 0 for both.

有人告诉我C＃接受& amp;和double&&，&，double会更有效率，因为它会在遇到false时立即退出比较循环，但我无法在其上找到Javascript的任何信息。

Someone told me that C# accepts both & and double &&, double being more efficient as it will exit the comparison loop as soon as a false is encountered, but I was not able to find any info for Javascript on that.

任何想法？

推荐答案

没有。 & 是按位AND 运营商。 && 是Javascript中唯一的逻辑AND运算符。

No. & is a bitwise AND operator. && is the only logical AND operator in Javascript.

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