Remove accent

removeAccent.js

/**
 * Normalizes the string to lowercase letters and no accents
 * @param  {string} str string to normalize
 * @return {string}     return string normalized
 */
const removeAccent = (str) => {
    const replaceMap = {
        '[ãâàáä]': 'a',
        '[êèéë]': 'e',
        '[îìíï]': 'i',
        '[õôòóö]': 'o',
        '[ûúùü]': 'u',
        ç: 'c',
        ñ: 'n'
    };
    return Object.keys(replaceMap).reduce((string, currentRegex) => {
        return string
            .replace(RegExp(currentRegex, 'ig'), replaceMap[currentRegex])
            .replace(/[\s]/g, '-')
            .replace(/[\d]/g, '');
    }, str);
};