normalizeString.js

/**
 * Removes the accent from a String
 * @see {@link https://gist.github.com/andersonbosa/d3693a3760c14e0564230d1535dd0adc}
 * @param {String} rawString
 * @returns {String}
 */
function normalizeString (rawString) {
  const replaceMap = {
    '[ãâàáä]': 'a',
    '[êèéë]': 'e',
    '[îìíï]': 'i',
    '[õôòóö]': 'o',
    '[ûúùü]': 'u',
    ç: 'c',
    ñ: 'n'
  }
  return Object.keys(replaceMap)
    .reduce(
      (string, currentRegex) =>
        string.replace(
          RegExp(currentRegex, 'ig'),
          replaceMap[currentRegex]
        ),
      String(rawString)
    )
    .toLowerCase()
}