Remove Accents

removeAccents.js

function removeAccents(string) {
  const special = 'ÀÁÂÃÄÅĄàáâãäåąßÒÓÔÕÕÖØÓòóôõöøóÈÉÊËĘèéêëęðÇĆçćÐÌÍÎÏìíîïÙÚÛÜùúûüÑŃñńŠŚšśŸÿýŽŻŹžżź';
  const stripped = 'AAAAAAAaaaaaaaBOOOOOOOOoooooooEEEEEeeeeeeCCccDIIIIiiiiUUUUuuuuNNnnSSssYyyZZZzzz';

  return string
    .split('')
    .map((letter) => {
      const index = special.indexOf(letter);
      return index !== -1 ? stripped[index] : letter;
    })
    .join('');
}

function replaceAccents(str) {
  if (str.search(/[\xC0-\xFF]/g) > -1) {
    str = str
      .replace(/[\xC0-\xC5]/g, 'A')
      .replace(/[\xC6]/g, 'AE')
      .replace(/[\xC7]/g, 'C')
      .replace(/[\xC8-\xCB]/g, 'E')
      .replace(/[\xCC-\xCF]/g, 'I')
      .replace(/[\xD0]/g, 'D')
      .replace(/[\xD1]/g, 'N')
      .replace(/[\xD2-\xD6\xD8]/g, 'O')
      .replace(/[\xD9-\xDC]/g, 'U')
      .replace(/[\xDD]/g, 'Y')
      .replace(/[\xDE]/g, 'P')
      .replace(/[\xE0-\xE5]/g, 'a')
      .replace(/[\xE6]/g, 'ae')
      .replace(/[\xE7]/g, 'c')
      .replace(/[\xE8-\xEB]/g, 'e')
      .replace(/[\xEC-\xEF]/g, 'i')
      .replace(/[\xF1]/g, 'n')
      .replace(/[\xF2-\xF6\xF8]/g, 'o')
      .replace(/[\xF9-\xFC]/g, 'u')
      .replace(/[\xFE]/g, 'p')
      .replace(/[\xFD\xFF]/g, 'y');
  }

  return str;
}

const string = 'Diego José Gonçalves Lameira';
console.log(removeAccents(string)); // Diego Jose Goncalves Lameira
console.log(replaceAccents(string)); // Diego Jose Goncalves Lameira