GitHub - mycoboco/wcwidth.js: a javascript porting of C's wcwidth()

Stick to version 1.0.2 if need to support node.js <16.15.1. wcwidth.js is a simple javascript porting of wcwidth() implemented in C by Markus Kuhn. wcwidth() and its string version, wcswidth() are defined by IEEE Std 1002.1-2001, a.k.a. POSIX.1-2001, and return the number of columns used to represent a wide character and string on fixed-width output devices like terminals. Markus's implementation

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“wcwidth() and its string version, wcswidth() are defined by IEEE Std 1002.1-2001, a.k.a. POSIX.1-2001, and return the number of columns used to represent a wide character and string on fixed-width output devices like terminals”