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This article is about how JavaScript uses the bitwise double non operator. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Bitwise double non operator

The bitwise double non operator can replace the Math.floor () method.

/ / Longhand const floor = Math.floor (6.8); / / 6 / / Shorthand const floor = ~ 6.8; / / 6

The bitwise double non-operator method applies only to 32-bit integers, that is, (2 bits 31)-1 = 2147483647. So for any number higher than 2147483647, the bitwise operator (~) will give the wrong result, so it is recommended to use Math.floor () in this case.

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