locutus/esm/perl/core/chomp.js

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

export function chomp(str) {
    //      discuss at: https://locutus.io/perl/chomp/
    // parity verified: Perl 5.40
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //       example 1: chomp('line\n')
    //       returns 1: 'line'
    //       example 2: chomp('line\r\n')
    //       returns 2: 'line'
    //       example 3: chomp('line')
    //       returns 3: 'line'
    const value = String(str);
    if (value.endsWith('\r\n')) {
        return value.slice(0, -2);
    }
    if (value.endsWith('\n') || value.endsWith('\r')) {
        return value.slice(0, -1);
    }
    return value;
}