Javascript：将一个值与多个值进行比较的最漂亮的方法 [英] Javascript: The prettiest way to compare one value against multiple values

问题描述

我知道有很多方法可以做到这一点，

I know there are loads of ways of doing this, but I'm looking for the neatest.

我问，因为我希望这是可行的（它不是，很显然，当你看看它）：

i ask because i'd hoped this was workable (it isn't, quite obviously when you look at it):

if (foobar == (foo||bar) ) {
     //do something
}

推荐答案

不要太鬼祟，特别是当它不必要地影响性能。
如果你真的有一堆比较做，只是格式化。

Don't try to be too sneaky, especially when it needlessly affects performance. If you really have a whole heap of comparisons to do, just format it nicely.

if (foobar === foo ||
    foobar === bar ||
    foobar === baz ||
    foobar === pew) {
     //do something
}

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