doraeminemon

function nonAccentVietnamese(str) {
  str = str.replace(/A|Á|À|Ã|Ạ|Â|Ấ|Ầ|Ẫ|Ậ|Ă|Ắ|Ằ|Ẵ|Ặ/g, "A");
  str = str.replace(/à|á|ạ|ả|ã|â|ầ|ấ|ậ|ẩ|ẫ|ă|ằ|ắ|ặ|ẳ|ẵ/g, "a");
  str = str.replace(/E|É|È|Ẽ|Ẹ|Ê|Ế|Ề|Ễ|Ệ/, "E");
  str = str.replace(/è|é|ẹ|ẻ|ẽ|ê|ề|ế|ệ|ể|ễ/g, "e");
  str = str.replace(/I|Í|Ì|Ĩ|Ị/g, "I");
  str = str.replace(/ì|í|ị|ỉ|ĩ/g, "i");
  str = str.replace(/O|Ó|Ò|Õ|Ọ|Ô|Ố|Ồ|Ỗ|Ộ|Ơ|Ớ|Ờ|Ỡ|Ợ/g, "O");
  str = str.replace(/ò|ó|ọ|ỏ|õ|ô|ồ|ố|ộ|ổ|ỗ|ơ|ờ|ớ|ợ|ở|ỡ/g, "o");
  str = str.replace(/U|Ú|Ù|Ũ|Ụ|Ư|Ứ|Ừ|Ữ|Ự/g, "U");