Run results for: Diacritics removal

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Old	26697.3 Ops/sec
New	359406.4 Ops/sec

Script Preparation code:

const replaceMap = {
    œ: 'oe',
    æ: 'ae',
}
const replacementsRegex = new RegExp(Object.keys(replaceMap).join('|'), 'g')
window.removeDiacritics = (value) => {
    return value
        .normalize('NFD')
        .replace(/[\u0300-\u036f]/g, '')
        .replace(replacementsRegex, (char) => {
            return replaceMap[char] || char
        })
}

window.oldRemoveDiacritics = function(s) {
    if (!s)
        return s;

    let r = s;

    r = r.replace(/[àáâãäå]/g, 'a');
    r = r.replace(/æ/g, 'ae');
    r = r.replace(/ç/g, 'c');
    r = r.replace(/[èéêë]/g, 'e');
    r = r.replace(/[ìíîï]/g, 'i');
    r = r.replace(/ñ/g, 'n');
    r = r.replace(/[òóôõö]/g, 'o');
    r = r.replace(/œ/g, 'oe');
    r = r.replace(/[ùúûü]/g, 'u');
    r = r.replace(/[ýÿ]/g, 'y');
    r = r.replace(/\\W/g, '');

    // To prevent some weird behaviors with MacOS diacritics
    r = _(r).map(function(char) {
        return String.fromCharCode(char.charCodeAt(0));
    });

    return r.join('');
};

Tests:

Old
oldRemoveDiacritics(` Dji pou magnî do vêre, çoula m' freut nén må - æsope - robot œuf Lorem, ipsum dolor sit amet consectetur adipisicing elit. Reiciendis voluptatem dolores molestiae possimus laudantium consequuntur placeat earum neque maxime modi quasi fugiat quae inventore, illo in corporis corrupti esse a! `)
New
removeDiacritics(` Dji pou magnî do vêre, çoula m' freut nén må - æsope - robot œuf Lorem, ipsum dolor sit amet consectetur adipisicing elit. Reiciendis voluptatem dolores molestiae possimus laudantium consequuntur placeat earum neque maxime modi quasi fugiat quae inventore, illo in corporis corrupti esse a! `)

Run results for: Diacritics removal

Old

New