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jarvisluong/nonAccentVietnamese.js

Last active December 19, 2024 07:43
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Converting standard Vietnamese Characters to non-accent ones (Chuyển đổi ký tự tiếng Việt sang không dấu). Example: hải -> hai
Raw
nonAccentVietnamese.js
// This function converts the string to lowercase, then perform the conversion
function toLowerCaseNonAccentVietnamese(str) {
str = str.toLowerCase();
// We can also use this instead of from line 11 to line 17
// str = str.replace(/\u00E0|\u00E1|\u1EA1|\u1EA3|\u00E3|\u00E2|\u1EA7|\u1EA5|\u1EAD|\u1EA9|\u1EAB|\u0103|\u1EB1|\u1EAF|\u1EB7|\u1EB3|\u1EB5/g, "a");
// str = str.replace(/\u00E8|\u00E9|\u1EB9|\u1EBB|\u1EBD|\u00EA|\u1EC1|\u1EBF|\u1EC7|\u1EC3|\u1EC5/g, "e");
// str = str.replace(/\u00EC|\u00ED|\u1ECB|\u1EC9|\u0129/g, "i");
// str = str.replace(/\u00F2|\u00F3|\u1ECD|\u1ECF|\u00F5|\u00F4|\u1ED3|\u1ED1|\u1ED9|\u1ED5|\u1ED7|\u01A1|\u1EDD|\u1EDB|\u1EE3|\u1EDF|\u1EE1/g, "o");
// str = str.replace(/\u00F9|\u00FA|\u1EE5|\u1EE7|\u0169|\u01B0|\u1EEB|\u1EE9|\u1EF1|\u1EED|\u1EEF/g, "u");
// str = str.replace(/\u1EF3|\u00FD|\u1EF5|\u1EF7|\u1EF9/g, "y");
// str = str.replace(/\u0111/g, "d");
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(/è|é|ẹ|ẻ|ẽ|ê|ề|ế|ệ|ể|ễ/g, "e");
str = str.replace(/ì|í|ị|ỉ|ĩ/g, "i");
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(/ù|ú|ụ|ủ|ũ|ư|ừ|ứ|ự|ử|ữ/g, "u");
str = str.replace(/ỳ|ý|ỵ|ỷ|ỹ/g, "y");
str = str.replace(/đ/g, "d");
// Some system encode vietnamese combining accent as individual utf-8 characters
str = str.replace(/\u0300|\u0301|\u0303|\u0309|\u0323/g, ""); // Huyền sắc hỏi ngã nặng
str = str.replace(/\u02C6|\u0306|\u031B/g, ""); // Â, Ê, Ă, Ơ, Ư
return str;
}
// This function keeps the casing unchanged for str, then perform the conversion
function toNonAccentVietnamese(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");
str = str.replace(/ù|ú|ụ|ủ|ũ|ư|ừ|ứ|ự|ử|ữ/g, "u");
str = str.replace(/Y|Ý|Ỳ|Ỹ|Ỵ/g, "Y");
str = str.replace(/ỳ|ý|ỵ|ỷ|ỹ/g, "y");
str = str.replace(/Đ/g, "D");
str = str.replace(/đ/g, "d");
// Some system encode vietnamese combining accent as individual utf-8 characters
str = str.replace(/\u0300|\u0301|\u0303|\u0309|\u0323/g, ""); // Huyền sắc hỏi ngã nặng
str = str.replace(/\u02C6|\u0306|\u031B/g, ""); // Â, Ê, Ă, Ơ, Ư
return str;
}
@nguyenminhthong2020
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Thank you <3

@jarvisluong
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Author

The gist has been updated with a new version that support character casing, with credits to @doraeminemon

@kiensupv1412
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thank

@phucvo811
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Thank you so much!!

@notobo15
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nicee

@vule-teq
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thank you so much!

@frosty1222
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có cách nào convert không dấu thành có dấu không

@25June
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25June commented May 30, 2023

Thank you so much!

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ghost commented Jun 8, 2023 •
edited by ghost
Loading

Thank you so much !
what about from english to vietnamese ?
@doraeminemon

@relentless-trailblazer
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cam on anh rat nhieu

@khanhoit
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it not working
input: MẪU BIÊN BẢN HỌP XEM LẠI BĂNG HÌNH.doc
output: MAU BIEN BẢN HOP XEM LAI BANG HINH.doc

@trananhhh
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thanks

@vinhloc30796
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MẪU BIÊN BẢN HỌP XEM LẠI BĂNG HÌNH.doc

function toNonAccentVietnamese(str) {
      str = str.replace(/A|Á|À|Ả|Ã|Ạ|Â|Ấ|Ầ|Ẩ|Ẫ|Ậ|Ă|Ắ|Ằ|Ẳ|Ẵ|Ặ/g, "A");
      str = str.replace(/à|á|ạ|ả|ã|â|ầ|ấ|ậ|ẩ|ẫ|ậ|ă|ằ|ắ|ặ|ẳ|ẵ/g, "a");
<same_for_remaining>
...

@duxonem
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duxonem commented Nov 14, 2024 •
edited
Loading

Thiếu mấy chữ dấu hỏi

function toNonAccentVietnamese(str) {
  return decodeURI(str).normalize('NFC')
      .replace(/Á|À|Ả|Ã|Ạ|Â|Ấ|Ầ|Ẫ|Ẩ|Ậ|Ă|Ắ|Ằ|Ẵ|Ặ|ẳ/g, "A")
      .replace(/á|à|ả|ã|ạ|â|ấ|ầ|ẫ|ẩ|ậ|ă|ắ|ằ|ẵ|ặ|ẳ/g, "a")
      .replace(/É|È|Ẻ|Ẽ|Ẹ|Ê|Ế|Ề|Ể|Ễ|Ệ/g, "E")
      .replace(/é|è|ẻ|ẽ|ẹ|ê|ề|ế|ệ|ể|ễ/g, "e")
      .replace(/Í|Ì|Ỉ|Ĩ|Ị/g, "I")
      .replace(/ì|í|ị|ỉ|ĩ/g, "i")
      .replace(/Ó|Ò|Ỏ|Õ|Ọ|Ô|Ố|Ồ|Ỗ|Ộ|Ổ|Ơ|Ớ|Ờ|Ỡ|Ợ|Ở/g, "O")
      .replace(/ò|ó|ọ|ỏ|õ|ô|ồ|ố|ộ|ổ|ỗ|ơ|ờ|ớ|ợ|ở|ỡ/g, "o")
      .replace(/Ú|Ù|Ủ|Ũ|Ụ|Ư|Ứ|Ừ|Ữ|Ử|Ự/g, "U")
      .replace(/ù|ú|ụ|ủ|ũ|ư|ừ|ứ|ự|ử|ữ/g, "u")
      .replace(/Ý|Ỳ|Ỷ|Ỹ|Ỵ/g, "Y")
      .replace(/ỳ|ý|ỵ|ỷ|ỹ/g, "y")
      .replace(/Đ/g, "D")
      .replace(/đ/g, "d")
}

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