locutus/esm/c/ctype/isspace.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

export function isspace(c) {
    //      discuss at: https://locutus.io/c/ctype/isspace/
    // parity verified: C 23
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //          note 1: Checks if the character is a whitespace character.
    //          note 1: Includes space, tab, newline, vertical tab, form feed, carriage return.
    //       example 1: isspace(' ')
    //       returns 1: true
    //       example 2: isspace('\t')
    //       returns 2: true
    //       example 3: isspace('a')
    //       returns 3: false
    c = (c + '').charAt(0);
    return /^[\s]$/.test(c);
}