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Comment by zX41ZdbW | Hacker News Reader

Here is my favorite: https://github.com/ClickHouse/ClickHouse/blob/master/utils/c...

"Too many exclamation marks"

I wonder how they picked three as too many. Why not two?

> Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out.

`!!thing` is a fairly common JS idiom for "I have a truthy/falsy thing and I want true or false."

Maybe because of the use of the "double bang" pattern to convert a value to boolean:

    !!41 === true
    !!0  === false

This is the obvious answer.

Two really does seem too many. I worry about these times when any passing coder can ni-gate at will.

I enjoy seeing a nice shell script. This one is easy to follow and is consistently formatted.

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