I found the following short and tricky codes on Double bitwise NOT (~~) –

Question

Editorial Team

Asked: May 22, 20262026-05-22T19:39:32+00:00 2026-05-22T19:39:32+00:00

I found the following short and tricky codes on

double bitwise not

Math.round(v) === ~~v

Math.floor(v) === ~~v (if v > 0)

isNaN(Number(v)) ? 0 : Number(v) === ~~v(if v is not float)

double not

Boolean(v) === !!v

(!Boolean(v) === !v)

bitwise shift

Math.round(v / 2) === v >> 1

Math.round(v) === v >> 0

single bitwise not

a.indexOf(v) !== -1 === ~a.indexOf(v)

Are there more short or tricky codes in javascript?

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Editorial Team · Answer 1 · 2026-05-22T19:39:33+00:00

Editorial Team

These “tricks” are not specific to Javascript.
A simple search on Google will return a number of pages offering tricks similar.

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