codeguy/slugify.js

shridharkalagi · 2021-03-09T16:43:46Z

Thanks for this!

andreasnuesslein · 2021-03-16T00:16:25Z

And if we implements this?

String.prototype.slugify = function (separator = "-") {
    return this
        .toString()
        .normalize('NFD')                   // split an accented letter in the base letter and the acent
        .replace(/[\u0300-\u036f]/g, '')   // remove all previously split accents
        .toLowerCase()
        .trim()
        .replace(/[^a-z0-9 ]/g, '')   // remove all chars not letters, numbers and spaces (to be replaced)
        .replace(/\s+/g, separator);
};

Ex:

"Exportação de _ peças - avícolas para Você".slugify() // exportacao-de-pecas-avicolas-para-voce

let text = "Café é o combustível para programação!!"
text.slugify("_") // cafe_e_o_combustivel_para_programacao

Nice!!!
I write in typescript without separator... looks:

export const slugify = (...args: (string | number)[]): string => {
    const value = args.join(' ')

    return value
        .normalize('NFD') // split an accented letter in the base letter and the acent
        .replace(/[\u0300-\u036f]/g, '') // remove all previously split accents
        .toLowerCase()
        .trim()
        .replace(/[^a-z0-9 ]/g, '') // remove all chars not letters, numbers and spaces (to be replaced)
        .replace(/\s+/g, '-') // separator
}

https://gist.github.com/max10rogerio/c67c5d2d7a3ce714c4bc0c114a3ddc6e

awesome.

iMakedonsky · 2021-04-09T14:37:04Z

awesome

nfrette · 2021-06-10T13:34:34Z

Nice!!

amranwebdeveloper · 2021-06-12T09:26:26Z

Complete version with @felipeftrindade suggestion:

function string_to_slug (str) {
    str = str.replace(/^\s+|\s+$/g, ''); // trim
    str = str.toLowerCase();
  
    // remove accents, swap ñ for n, etc
    var from = "àáãäâèéëêìíïîòóöôùúüûñç·/_,:;";
    var to   = "aaaaaeeeeiiiioooouuuunc------";

    for (var i=0, l=from.length ; i<l ; i++) {
        str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
    }

    str = str.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
        .replace(/\s+/g, '-') // collapse whitespace and replace by -
        .replace(/-+/g, '-'); // collapse dashes

    return str;
}

Thanks for this idea

Oleg-Imanilov · 2021-08-31T19:06:42Z

There is a lot of implementations for slugify over the internet right now. The thing that caught my attention is: so many years all custom versions copying same wrong patterns:

In this part:

    // remove accents, swap ñ for n, etc
    var from = "àáãäâèéëêìíïîòóöôùúüûñç·/_,:;";
    var to   = "aaaaaeeeeiiiioooouuuunc------";

Why do you converting anything to '-' over here by costly loop, if you taking care of all non alphanumerics later.

The right version would be:

    // remove accents, swap ñ for n, etc
    var from = "àáãäâèéëêìíïîòóöôùúüûñç";
    var to   = "aaaaaeeeeiiiioooouuuunc";

Cleaning non alphanumerics

    str = str.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
        .replace(/\s+/g, '-') // collapse whitespace and replace by -
        .replace(/-+/g, '-'); // collapse dashes

1st - it will connect several words if separated by invalid chars only
2nd - you taking care of ' ' & '-' two times

The more optimal way to fix it:

    str = str.replace(/[^a-z0-9]/g, '-') // remove all except alphanumerics & replace all with '-'
        .replace(/-+/g, '-'); // collapse dashes

juanlanus · 2021-09-01T22:34:03Z

@Oleg-Imanilov:
You are right if you needed to support IE.
Else the "normalize" approach is preferable because it does not depends on the developer providing two synchronized lengthy character strings:

    ...
    .normalize( 'NFD' )                   // split an accented letter in the base letter and its acent
    .replace( /[\u0300-\u036f]/g, '' )   // remove all previously split accents
    ...

This is a native JS Unicode function.

M4TH76 · 2021-11-26T00:59:59Z

Great!!!
And if with we move trim() down and add "-" to the exclusion

"five-year-old ?".slugify() 
//result:   "five-year-old" instead of "fiveyearold-"

String.prototype.slugify = function (separator = "-") {
    return this
        .toString()
        .normalize('NFD')                   // split an accented letter in the base letter and the acent
        .replace(/[\u0300-\u036f]/g, '')   // remove all previously split accents
        .toLowerCase()
        .replace(/[^a-z0-9 -]/g, '')   // remove all chars not letters, numbers and spaces (to be replaced)
        .trim()
        .replace(/\s+/g, separator);
};

Vickyb59 · 2021-12-18T20:39:13Z

Ewo

Allirey · 2022-01-16T23:55:32Z

something similar to Django's slugify:

export default function (str: string) {
  return str
    .normalize('NFKD')
    .toLowerCase()
    .replace(/[^\w\s-]/g, '')
    .trim()
    .replace(/[-\s]+/g, '-');
};

and tests:

describe('test slugify', () => {
  test('test1', () => {
    expect(slugify(' Jack & Jill like numbers 1,2,3 and 4 and silly characters ?%.$!/'))
      .toEqual('jack-jill-like-numbers-123-and-4-and-silly-characters');
  });
  test('test2', () => {
    expect(slugify("Un \xe9l\xe9phant \xe0 l'or\xe9e du bois"))
      .toEqual('un-elephant-a-loree-du-bois');
  });
});

lazarok09 · 2022-02-10T17:20:39Z

@amranwebdeveloper
I'm building a website that sometimes the slug have a chinese character and i want to keep it
1 - Create a file named cleanSlug.js
2 - Inside the file, copy and paste the code below

/**
 * * This function create a slug friendily to use in your web application
 * * Compatibility with chinese characters
 * ! Chinese characters doesn't have any modification
 * @param slug
 * @returns cleaned slug
 */
export function cleanSlug(slug) {
  slug = slug.replace(/^\s+|\s+$/g, '');
  slug = slug.toLowerCase();

  const from = 'àáäâèéëêìíïîòóöôùúüûñç·/_,:;';
  const to = 'aaaaeeeeiiiioooouuuunc------';

  for (let i = 0, l = from.length; i < l; i++) {
    slug = slug.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
  }

  slug = slug
    .normalize('NFD')
    .replace(/[^a-z0-9 -]^[\u4e00-\u9fa5]/g, '') // remove all that not are a letter, a number, and are not a chinese word
    .replace(/\s+/g, '-')
    .replace(/-+/g, '-')
    .replace('-?', '') 
    .replace('?', '');

  return slug;
}

Tofandel · 2022-02-25T11:16:20Z

Everybody here is missing the - in .replace(/[^a-z0-9 ]/g, '') => .replace(/[^a-z0-9 -]/g, '')

tauseedzaman · 2022-04-09T10:34:37Z

just a quick edit with some more characters.

export default (str) => {
    str = String(str).toString();
    str = str.replace(/^\s+|\s+$/g, ""); // trim
    str = str.toLowerCase();

    // remove accents, swap ñ for n, etc
    const swaps = {
        '0': ['°', '₀', '۰', '０'],
        '1': ['¹', '₁', '۱', '１'],
        '2': ['²', '₂', '۲', '２'],
        '3': ['³', '₃', '۳', '３'],
        '4': ['⁴', '₄', '۴', '٤', '４'],
        '5': ['⁵', '₅', '۵', '٥', '５'],
        '6': ['⁶', '₆', '۶', '٦', '６'],
        '7': ['⁷', '₇', '۷', '７'],
        '8': ['⁸', '₈', '۸', '８'],
        '9': ['⁹', '₉', '۹', '９'],
        'a': ['à', 'á', 'ả', 'ã', 'ạ', 'ă', 'ắ', 'ằ', 'ẳ', 'ẵ', 'ặ', 'â', 'ấ', 'ầ', 'ẩ', 'ẫ', 'ậ', 'ā', 'ą', 'å', 'α', 'ά', 'ἀ', 'ἁ', 'ἂ', 'ἃ', 'ἄ', 'ἅ', 'ἆ', 'ἇ', 'ᾀ', 'ᾁ', 'ᾂ', 'ᾃ', 'ᾄ', 'ᾅ', 'ᾆ', 'ᾇ', 'ὰ', 'ά', 'ᾰ', 'ᾱ', 'ᾲ', 'ᾳ', 'ᾴ', 'ᾶ', 'ᾷ', 'а', 'أ', 'အ', 'ာ', 'ါ', 'ǻ', 'ǎ', 'ª', 'ა', 'अ', 'ا', 'ａ', 'ä'],
        'b': ['б', 'β', 'ب', 'ဗ', 'ბ', 'ｂ'],
        'c': ['ç', 'ć', 'č', 'ĉ', 'ċ', 'ｃ'],
        'd': ['ď', 'ð', 'đ', 'ƌ', 'ȡ', 'ɖ', 'ɗ', 'ᵭ', 'ᶁ', 'ᶑ', 'д', 'δ', 'د', 'ض', 'ဍ', 'ဒ', 'დ', 'ｄ'],
        'e': ['é', 'è', 'ẻ', 'ẽ', 'ẹ', 'ê', 'ế', 'ề', 'ể', 'ễ', 'ệ', 'ë', 'ē', 'ę', 'ě', 'ĕ', 'ė', 'ε', 'έ', 'ἐ', 'ἑ', 'ἒ', 'ἓ', 'ἔ', 'ἕ', 'ὲ', 'έ', 'е', 'ё', 'э', 'є', 'ə', 'ဧ', 'ေ', 'ဲ', 'ე', 'ए', 'إ', 'ئ', 'ｅ'],
        'f': ['ф', 'φ', 'ف', 'ƒ', 'ფ', 'ｆ'],
        'g': ['ĝ', 'ğ', 'ġ', 'ģ', 'г', 'ґ', 'γ', 'ဂ', 'გ', 'گ', 'ｇ'],
        'h': ['ĥ', 'ħ', 'η', 'ή', 'ح', 'ه', 'ဟ', 'ှ', 'ჰ', 'ｈ'],
        'i': ['í', 'ì', 'ỉ', 'ĩ', 'ị', 'î', 'ï', 'ī', 'ĭ', 'į', 'ı', 'ι', 'ί', 'ϊ', 'ΐ', 'ἰ', 'ἱ', 'ἲ', 'ἳ', 'ἴ', 'ἵ', 'ἶ', 'ἷ', 'ὶ', 'ί', 'ῐ', 'ῑ', 'ῒ', 'ΐ', 'ῖ', 'ῗ', 'і', 'ї', 'и', 'ဣ', 'ိ', 'ီ', 'ည်', 'ǐ', 'ი', 'इ', 'ی', 'ｉ'],
        'j': ['ĵ', 'ј', 'Ј', 'ჯ', 'ج', 'ｊ'],
        'k': ['ķ', 'ĸ', 'к', 'κ', 'Ķ', 'ق', 'ك', 'က', 'კ', 'ქ', 'ک', 'ｋ'],
        'l': ['ł', 'ľ', 'ĺ', 'ļ', 'ŀ', 'л', 'λ', 'ل', 'လ', 'ლ', 'ｌ'],
        'm': ['м', 'μ', 'م', 'မ', 'მ', 'ｍ'],
        'n': ['ñ', 'ń', 'ň', 'ņ', 'ŉ', 'ŋ', 'ν', 'н', 'ن', 'န', 'ნ', 'ｎ'],
        'o': ['ó', 'ò', 'ỏ', 'õ', 'ọ', 'ô', 'ố', 'ồ', 'ổ', 'ỗ', 'ộ', 'ơ', 'ớ', 'ờ', 'ở', 'ỡ', 'ợ', 'ø', 'ō', 'ő', 'ŏ', 'ο', 'ὀ', 'ὁ', 'ὂ', 'ὃ', 'ὄ', 'ὅ', 'ὸ', 'ό', 'о', 'و', 'θ', 'ို', 'ǒ', 'ǿ', 'º', 'ო', 'ओ', 'ｏ', 'ö'],
        'p': ['п', 'π', 'ပ', 'პ', 'پ', 'ｐ'],
        'q': ['ყ', 'ｑ'],
        'r': ['ŕ', 'ř', 'ŗ', 'р', 'ρ', 'ر', 'რ', 'ｒ'],
        's': ['ś', 'š', 'ş', 'с', 'σ', 'ș', 'ς', 'س', 'ص', 'စ', 'ſ', 'ს', 'ｓ'],
        't': ['ť', 'ţ', 'т', 'τ', 'ț', 'ت', 'ط', 'ဋ', 'တ', 'ŧ', 'თ', 'ტ', 'ｔ'],
        'u': ['ú', 'ù', 'ủ', 'ũ', 'ụ', 'ư', 'ứ', 'ừ', 'ử', 'ữ', 'ự', 'û', 'ū', 'ů', 'ű', 'ŭ', 'ų', 'µ', 'у', 'ဉ', 'ု', 'ူ', 'ǔ', 'ǖ', 'ǘ', 'ǚ', 'ǜ', 'უ', 'उ', 'ｕ', 'ў', 'ü'],
        'v': ['в', 'ვ', 'ϐ', 'ｖ'],
        'w': ['ŵ', 'ω', 'ώ', 'ဝ', 'ွ', 'ｗ'],
        'x': ['χ', 'ξ', 'ｘ'],
        'y': ['ý', 'ỳ', 'ỷ', 'ỹ', 'ỵ', 'ÿ', 'ŷ', 'й', 'ы', 'υ', 'ϋ', 'ύ', 'ΰ', 'ي', 'ယ', 'ｙ'],
        'z': ['ź', 'ž', 'ż', 'з', 'ζ', 'ز', 'ဇ', 'ზ', 'ｚ'],
        'aa': ['ع', 'आ', 'آ'],
        'ae': ['æ', 'ǽ'],
        'ai': ['ऐ'],
        'ch': ['ч', 'ჩ', 'ჭ', 'چ'],
        'dj': ['ђ', 'đ'],
        'dz': ['џ', 'ძ'],
        'ei': ['ऍ'],
        'gh': ['غ', 'ღ'],
        'ii': ['ई'],
        'ij': ['ĳ'],
        'kh': ['х', 'خ', 'ხ'],
        'lj': ['љ'],
        'nj': ['њ'],
        'oe': ['ö', 'œ', 'ؤ'],
        'oi': ['ऑ'],
        'oii': ['ऒ'],
        'ps': ['ψ'],
        'sh': ['ш', 'შ', 'ش'],
        'shch': ['щ'],
        'ss': ['ß'],
        'sx': ['ŝ'],
        'th': ['þ', 'ϑ', 'ث', 'ذ', 'ظ'],
        'ts': ['ц', 'ც', 'წ'],
        'ue': ['ü'],
        'uu': ['ऊ'],
        'ya': ['я'],
        'yu': ['ю'],
        'zh': ['ж', 'ჟ', 'ژ'],
        '(c)': ['©'],
        'A': ['Á', 'À', 'Ả', 'Ã', 'Ạ', 'Ă', 'Ắ', 'Ằ', 'Ẳ', 'Ẵ', 'Ặ', 'Â', 'Ấ', 'Ầ', 'Ẩ', 'Ẫ', 'Ậ', 'Å', 'Ā', 'Ą', 'Α', 'Ά', 'Ἀ', 'Ἁ', 'Ἂ', 'Ἃ', 'Ἄ', 'Ἅ', 'Ἆ', 'Ἇ', 'ᾈ', 'ᾉ', 'ᾊ', 'ᾋ', 'ᾌ', 'ᾍ', 'ᾎ', 'ᾏ', 'Ᾰ', 'Ᾱ', 'Ὰ', 'Ά', 'ᾼ', 'А', 'Ǻ', 'Ǎ', 'Ａ', 'Ä'],
        'B': ['Б', 'Β', 'ब', 'Ｂ'],
        'C': ['Ç', 'Ć', 'Č', 'Ĉ', 'Ċ', 'Ｃ'],
        'D': ['Ď', 'Ð', 'Đ', 'Ɖ', 'Ɗ', 'Ƌ', 'ᴅ', 'ᴆ', 'Д', 'Δ', 'Ｄ'],
        'E': ['É', 'È', 'Ẻ', 'Ẽ', 'Ẹ', 'Ê', 'Ế', 'Ề', 'Ể', 'Ễ', 'Ệ', 'Ë', 'Ē', 'Ę', 'Ě', 'Ĕ', 'Ė', 'Ε', 'Έ', 'Ἐ', 'Ἑ', 'Ἒ', 'Ἓ', 'Ἔ', 'Ἕ', 'Έ', 'Ὲ', 'Е', 'Ё', 'Э', 'Є', 'Ə', 'Ｅ'],
        'F': ['Ф', 'Φ', 'Ｆ'],
        'G': ['Ğ', 'Ġ', 'Ģ', 'Г', 'Ґ', 'Γ', 'Ｇ'],
        'H': ['Η', 'Ή', 'Ħ', 'Ｈ'],
        'I': ['Í', 'Ì', 'Ỉ', 'Ĩ', 'Ị', 'Î', 'Ï', 'Ī', 'Ĭ', 'Į', 'İ', 'Ι', 'Ί', 'Ϊ', 'Ἰ', 'Ἱ', 'Ἳ', 'Ἴ', 'Ἵ', 'Ἶ', 'Ἷ', 'Ῐ', 'Ῑ', 'Ὶ', 'Ί', 'И', 'І', 'Ї', 'Ǐ', 'ϒ', 'Ｉ'],
        'J': ['Ｊ'],
        'K': ['К', 'Κ', 'Ｋ'],
        'L': ['Ĺ', 'Ł', 'Л', 'Λ', 'Ļ', 'Ľ', 'Ŀ', 'ल', 'Ｌ'],
        'M': ['М', 'Μ', 'Ｍ'],
        'N': ['Ń', 'Ñ', 'Ň', 'Ņ', 'Ŋ', 'Н', 'Ν', 'Ｎ'],
        'O': ['Ó', 'Ò', 'Ỏ', 'Õ', 'Ọ', 'Ô', 'Ố', 'Ồ', 'Ổ', 'Ỗ', 'Ộ', 'Ơ', 'Ớ', 'Ờ', 'Ở', 'Ỡ', 'Ợ', 'Ø', 'Ō', 'Ő', 'Ŏ', 'Ο', 'Ό', 'Ὀ', 'Ὁ', 'Ὂ', 'Ὃ', 'Ὄ', 'Ὅ', 'Ὸ', 'Ό', 'О', 'Θ', 'Ө', 'Ǒ', 'Ǿ', 'Ｏ', 'Ö'],
        'P': ['П', 'Π', 'Ｐ'],
        'Q': ['Ｑ'],
        'R': ['Ř', 'Ŕ', 'Р', 'Ρ', 'Ŗ', 'Ｒ'],
        'S': ['Ş', 'Ŝ', 'Ș', 'Š', 'Ś', 'С', 'Σ', 'Ｓ'],
        'T': ['Ť', 'Ţ', 'Ŧ', 'Ț', 'Т', 'Τ', 'Ｔ'],
        'U': ['Ú', 'Ù', 'Ủ', 'Ũ', 'Ụ', 'Ư', 'Ứ', 'Ừ', 'Ử', 'Ữ', 'Ự', 'Û', 'Ū', 'Ů', 'Ű', 'Ŭ', 'Ų', 'У', 'Ǔ', 'Ǖ', 'Ǘ', 'Ǚ', 'Ǜ', 'Ｕ', 'Ў', 'Ü'],
        'V': ['В', 'Ｖ'],
        'W': ['Ω', 'Ώ', 'Ŵ', 'Ｗ'],
        'X': ['Χ', 'Ξ', 'Ｘ'],
        'Y': ['Ý', 'Ỳ', 'Ỷ', 'Ỹ', 'Ỵ', 'Ÿ', 'Ῠ', 'Ῡ', 'Ὺ', 'Ύ', 'Ы', 'Й', 'Υ', 'Ϋ', 'Ŷ', 'Ｙ'],
        'Z': ['Ź', 'Ž', 'Ż', 'З', 'Ζ', 'Ｚ'],
        'AE': ['Æ', 'Ǽ'],
        'Ch': ['Ч'],
        'Dj': ['Ђ'],
        'Dz': ['Џ'],
        'Gx': ['Ĝ'],
        'Hx': ['Ĥ'],
        'Ij': ['Ĳ'],
        'Jx': ['Ĵ'],
        'Kh': ['Х'],
        'Lj': ['Љ'],
        'Nj': ['Њ'],
        'Oe': ['Œ'],
        'Ps': ['Ψ'],
        'Sh': ['Ш'],
        'Shch': ['Щ'],
        'Ss': ['ẞ'],
        'Th': ['Þ'],
        'Ts': ['Ц'],
        'Ya': ['Я'],
        'Yu': ['Ю'],
        'Zh': ['Ж'],
    };

    Object.keys(swaps).forEach((swap) => {
        swaps[swap].forEach(s => {
            str = str.replace(new RegExp(s, "g"), swap);
        })
    });
    return str
        .replace(/[^a-z0-9 -]/g, "") // remove invalid chars
        .replace(/\s+/g, "-") // collapse whitespace and replace by -
        .replace(/-+/g, "-") // collapse dashes
        .replace(/^-+/, "") // trim - from start of text
        .replace(/-+$/, "");
};

this is too much

juanlanus · 2022-04-09T17:58:04Z

@tauseedzaman:
Isn't all the swaps thing achieved with the two lines below?
.normalize( 'NFD' ) // split an accented letter in the base letter and the acent
.replace( /[\u0300-\u036f]/g, '' ) // remove all previously split accents

tauseedzaman · 2022-04-15T05:06:34Z

thanks guys

thierryc · 2022-04-15T08:40:21Z

just a quick edit with some more characters.

export default (str) => {
    str = String(str).toString();
    str = str.replace(/^\s+|\s+$/g, ""); // trim
    str = str.toLowerCase();

    // remove accents, swap ñ for n, etc
    const swaps = {
        '0': ['°', '₀', '۰', '０'],
        '1': ['¹', '₁', '۱', '１'],
        '2': ['²', '₂', '۲', '２'],
        '3': ['³', '₃', '۳', '３'],
        '4': ['⁴', '₄', '۴', '٤', '４'],
        '5': ['⁵', '₅', '۵', '٥', '５'],
        '6': ['⁶', '₆', '۶', '٦', '６'],
        '7': ['⁷', '₇', '۷', '７'],
        '8': ['⁸', '₈', '۸', '８'],
        '9': ['⁹', '₉', '۹', '９'],
        'a': ['à', 'á', 'ả', 'ã', 'ạ', 'ă', 'ắ', 'ằ', 'ẳ', 'ẵ', 'ặ', 'â', 'ấ', 'ầ', 'ẩ', 'ẫ', 'ậ', 'ā', 'ą', 'å', 'α', 'ά', 'ἀ', 'ἁ', 'ἂ', 'ἃ', 'ἄ', 'ἅ', 'ἆ', 'ἇ', 'ᾀ', 'ᾁ', 'ᾂ', 'ᾃ', 'ᾄ', 'ᾅ', 'ᾆ', 'ᾇ', 'ὰ', 'ά', 'ᾰ', 'ᾱ', 'ᾲ', 'ᾳ', 'ᾴ', 'ᾶ', 'ᾷ', 'а', 'أ', 'အ', 'ာ', 'ါ', 'ǻ', 'ǎ', 'ª', 'ა', 'अ', 'ا', 'ａ', 'ä'],
        'b': ['б', 'β', 'ب', 'ဗ', 'ბ', 'ｂ'],
        'c': ['ç', 'ć', 'č', 'ĉ', 'ċ', 'ｃ'],
        'd': ['ď', 'ð', 'đ', 'ƌ', 'ȡ', 'ɖ', 'ɗ', 'ᵭ', 'ᶁ', 'ᶑ', 'д', 'δ', 'د', 'ض', 'ဍ', 'ဒ', 'დ', 'ｄ'],
        'e': ['é', 'è', 'ẻ', 'ẽ', 'ẹ', 'ê', 'ế', 'ề', 'ể', 'ễ', 'ệ', 'ë', 'ē', 'ę', 'ě', 'ĕ', 'ė', 'ε', 'έ', 'ἐ', 'ἑ', 'ἒ', 'ἓ', 'ἔ', 'ἕ', 'ὲ', 'έ', 'е', 'ё', 'э', 'є', 'ə', 'ဧ', 'ေ', 'ဲ', 'ე', 'ए', 'إ', 'ئ', 'ｅ'],
        'f': ['ф', 'φ', 'ف', 'ƒ', 'ფ', 'ｆ'],
        'g': ['ĝ', 'ğ', 'ġ', 'ģ', 'г', 'ґ', 'γ', 'ဂ', 'გ', 'گ', 'ｇ'],
        'h': ['ĥ', 'ħ', 'η', 'ή', 'ح', 'ه', 'ဟ', 'ှ', 'ჰ', 'ｈ'],
        'i': ['í', 'ì', 'ỉ', 'ĩ', 'ị', 'î', 'ï', 'ī', 'ĭ', 'į', 'ı', 'ι', 'ί', 'ϊ', 'ΐ', 'ἰ', 'ἱ', 'ἲ', 'ἳ', 'ἴ', 'ἵ', 'ἶ', 'ἷ', 'ὶ', 'ί', 'ῐ', 'ῑ', 'ῒ', 'ΐ', 'ῖ', 'ῗ', 'і', 'ї', 'и', 'ဣ', 'ိ', 'ီ', 'ည်', 'ǐ', 'ი', 'इ', 'ی', 'ｉ'],
        'j': ['ĵ', 'ј', 'Ј', 'ჯ', 'ج', 'ｊ'],
        'k': ['ķ', 'ĸ', 'к', 'κ', 'Ķ', 'ق', 'ك', 'က', 'კ', 'ქ', 'ک', 'ｋ'],
        'l': ['ł', 'ľ', 'ĺ', 'ļ', 'ŀ', 'л', 'λ', 'ل', 'လ', 'ლ', 'ｌ'],
        'm': ['м', 'μ', 'م', 'မ', 'მ', 'ｍ'],
        'n': ['ñ', 'ń', 'ň', 'ņ', 'ŉ', 'ŋ', 'ν', 'н', 'ن', 'န', 'ნ', 'ｎ'],
        'o': ['ó', 'ò', 'ỏ', 'õ', 'ọ', 'ô', 'ố', 'ồ', 'ổ', 'ỗ', 'ộ', 'ơ', 'ớ', 'ờ', 'ở', 'ỡ', 'ợ', 'ø', 'ō', 'ő', 'ŏ', 'ο', 'ὀ', 'ὁ', 'ὂ', 'ὃ', 'ὄ', 'ὅ', 'ὸ', 'ό', 'о', 'و', 'θ', 'ို', 'ǒ', 'ǿ', 'º', 'ო', 'ओ', 'ｏ', 'ö'],
        'p': ['п', 'π', 'ပ', 'პ', 'پ', 'ｐ'],
        'q': ['ყ', 'ｑ'],
        'r': ['ŕ', 'ř', 'ŗ', 'р', 'ρ', 'ر', 'რ', 'ｒ'],
        's': ['ś', 'š', 'ş', 'с', 'σ', 'ș', 'ς', 'س', 'ص', 'စ', 'ſ', 'ს', 'ｓ'],
        't': ['ť', 'ţ', 'т', 'τ', 'ț', 'ت', 'ط', 'ဋ', 'တ', 'ŧ', 'თ', 'ტ', 'ｔ'],
        'u': ['ú', 'ù', 'ủ', 'ũ', 'ụ', 'ư', 'ứ', 'ừ', 'ử', 'ữ', 'ự', 'û', 'ū', 'ů', 'ű', 'ŭ', 'ų', 'µ', 'у', 'ဉ', 'ု', 'ူ', 'ǔ', 'ǖ', 'ǘ', 'ǚ', 'ǜ', 'უ', 'उ', 'ｕ', 'ў', 'ü'],
        'v': ['в', 'ვ', 'ϐ', 'ｖ'],
        'w': ['ŵ', 'ω', 'ώ', 'ဝ', 'ွ', 'ｗ'],
        'x': ['χ', 'ξ', 'ｘ'],
        'y': ['ý', 'ỳ', 'ỷ', 'ỹ', 'ỵ', 'ÿ', 'ŷ', 'й', 'ы', 'υ', 'ϋ', 'ύ', 'ΰ', 'ي', 'ယ', 'ｙ'],
        'z': ['ź', 'ž', 'ż', 'з', 'ζ', 'ز', 'ဇ', 'ზ', 'ｚ'],
        'aa': ['ع', 'आ', 'آ'],
        'ae': ['æ', 'ǽ'],
        'ai': ['ऐ'],
        'ch': ['ч', 'ჩ', 'ჭ', 'چ'],
        'dj': ['ђ', 'đ'],
        'dz': ['џ', 'ძ'],
        'ei': ['ऍ'],
        'gh': ['غ', 'ღ'],
        'ii': ['ई'],
        'ij': ['ĳ'],
        'kh': ['х', 'خ', 'ხ'],
        'lj': ['љ'],
        'nj': ['њ'],
        'oe': ['ö', 'œ', 'ؤ'],
        'oi': ['ऑ'],
        'oii': ['ऒ'],
        'ps': ['ψ'],
        'sh': ['ш', 'შ', 'ش'],
        'shch': ['щ'],
        'ss': ['ß'],
        'sx': ['ŝ'],
        'th': ['þ', 'ϑ', 'ث', 'ذ', 'ظ'],
        'ts': ['ц', 'ც', 'წ'],
        'ue': ['ü'],
        'uu': ['ऊ'],
        'ya': ['я'],
        'yu': ['ю'],
        'zh': ['ж', 'ჟ', 'ژ'],
        '(c)': ['©'],
        'A': ['Á', 'À', 'Ả', 'Ã', 'Ạ', 'Ă', 'Ắ', 'Ằ', 'Ẳ', 'Ẵ', 'Ặ', 'Â', 'Ấ', 'Ầ', 'Ẩ', 'Ẫ', 'Ậ', 'Å', 'Ā', 'Ą', 'Α', 'Ά', 'Ἀ', 'Ἁ', 'Ἂ', 'Ἃ', 'Ἄ', 'Ἅ', 'Ἆ', 'Ἇ', 'ᾈ', 'ᾉ', 'ᾊ', 'ᾋ', 'ᾌ', 'ᾍ', 'ᾎ', 'ᾏ', 'Ᾰ', 'Ᾱ', 'Ὰ', 'Ά', 'ᾼ', 'А', 'Ǻ', 'Ǎ', 'Ａ', 'Ä'],
        'B': ['Б', 'Β', 'ब', 'Ｂ'],
        'C': ['Ç', 'Ć', 'Č', 'Ĉ', 'Ċ', 'Ｃ'],
        'D': ['Ď', 'Ð', 'Đ', 'Ɖ', 'Ɗ', 'Ƌ', 'ᴅ', 'ᴆ', 'Д', 'Δ', 'Ｄ'],
        'E': ['É', 'È', 'Ẻ', 'Ẽ', 'Ẹ', 'Ê', 'Ế', 'Ề', 'Ể', 'Ễ', 'Ệ', 'Ë', 'Ē', 'Ę', 'Ě', 'Ĕ', 'Ė', 'Ε', 'Έ', 'Ἐ', 'Ἑ', 'Ἒ', 'Ἓ', 'Ἔ', 'Ἕ', 'Έ', 'Ὲ', 'Е', 'Ё', 'Э', 'Є', 'Ə', 'Ｅ'],
        'F': ['Ф', 'Φ', 'Ｆ'],
        'G': ['Ğ', 'Ġ', 'Ģ', 'Г', 'Ґ', 'Γ', 'Ｇ'],
        'H': ['Η', 'Ή', 'Ħ', 'Ｈ'],
        'I': ['Í', 'Ì', 'Ỉ', 'Ĩ', 'Ị', 'Î', 'Ï', 'Ī', 'Ĭ', 'Į', 'İ', 'Ι', 'Ί', 'Ϊ', 'Ἰ', 'Ἱ', 'Ἳ', 'Ἴ', 'Ἵ', 'Ἶ', 'Ἷ', 'Ῐ', 'Ῑ', 'Ὶ', 'Ί', 'И', 'І', 'Ї', 'Ǐ', 'ϒ', 'Ｉ'],
        'J': ['Ｊ'],
        'K': ['К', 'Κ', 'Ｋ'],
        'L': ['Ĺ', 'Ł', 'Л', 'Λ', 'Ļ', 'Ľ', 'Ŀ', 'ल', 'Ｌ'],
        'M': ['М', 'Μ', 'Ｍ'],
        'N': ['Ń', 'Ñ', 'Ň', 'Ņ', 'Ŋ', 'Н', 'Ν', 'Ｎ'],
        'O': ['Ó', 'Ò', 'Ỏ', 'Õ', 'Ọ', 'Ô', 'Ố', 'Ồ', 'Ổ', 'Ỗ', 'Ộ', 'Ơ', 'Ớ', 'Ờ', 'Ở', 'Ỡ', 'Ợ', 'Ø', 'Ō', 'Ő', 'Ŏ', 'Ο', 'Ό', 'Ὀ', 'Ὁ', 'Ὂ', 'Ὃ', 'Ὄ', 'Ὅ', 'Ὸ', 'Ό', 'О', 'Θ', 'Ө', 'Ǒ', 'Ǿ', 'Ｏ', 'Ö'],
        'P': ['П', 'Π', 'Ｐ'],
        'Q': ['Ｑ'],
        'R': ['Ř', 'Ŕ', 'Р', 'Ρ', 'Ŗ', 'Ｒ'],
        'S': ['Ş', 'Ŝ', 'Ș', 'Š', 'Ś', 'С', 'Σ', 'Ｓ'],
        'T': ['Ť', 'Ţ', 'Ŧ', 'Ț', 'Т', 'Τ', 'Ｔ'],
        'U': ['Ú', 'Ù', 'Ủ', 'Ũ', 'Ụ', 'Ư', 'Ứ', 'Ừ', 'Ử', 'Ữ', 'Ự', 'Û', 'Ū', 'Ů', 'Ű', 'Ŭ', 'Ų', 'У', 'Ǔ', 'Ǖ', 'Ǘ', 'Ǚ', 'Ǜ', 'Ｕ', 'Ў', 'Ü'],
        'V': ['В', 'Ｖ'],
        'W': ['Ω', 'Ώ', 'Ŵ', 'Ｗ'],
        'X': ['Χ', 'Ξ', 'Ｘ'],
        'Y': ['Ý', 'Ỳ', 'Ỷ', 'Ỹ', 'Ỵ', 'Ÿ', 'Ῠ', 'Ῡ', 'Ὺ', 'Ύ', 'Ы', 'Й', 'Υ', 'Ϋ', 'Ŷ', 'Ｙ'],
        'Z': ['Ź', 'Ž', 'Ż', 'З', 'Ζ', 'Ｚ'],
        'AE': ['Æ', 'Ǽ'],
        'Ch': ['Ч'],
        'Dj': ['Ђ'],
        'Dz': ['Џ'],
        'Gx': ['Ĝ'],
        'Hx': ['Ĥ'],
        'Ij': ['Ĳ'],
        'Jx': ['Ĵ'],
        'Kh': ['Х'],
        'Lj': ['Љ'],
        'Nj': ['Њ'],
        'Oe': ['Œ'],
        'Ps': ['Ψ'],
        'Sh': ['Ш'],
        'Shch': ['Щ'],
        'Ss': ['ẞ'],
        'Th': ['Þ'],
        'Ts': ['Ц'],
        'Ya': ['Я'],
        'Yu': ['Ю'],
        'Zh': ['Ж'],
    };

    Object.keys(swaps).forEach((swap) => {
        swaps[swap].forEach(s => {
            str = str.replace(new RegExp(s, "g"), swap);
        })
    });
    return str
        .replace(/[^a-z0-9 -]/g, "") // remove invalid chars
        .replace(/\s+/g, "-") // collapse whitespace and replace by -
        .replace(/-+/g, "-") // collapse dashes
        .replace(/^-+/, "") // trim - from start of text
        .replace(/-+$/, "");
};

this is too much

My old but still true explain version.

https://gist.github.com/codeguy/6684588?permalink_comment_id=3243980#gistcomment-3243980

thierryc · 2022-04-15T08:41:38Z

More info about normalize()...

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize
The normalize() method returns the Unicode Normalization Form of a given string.

juanlanus · 2022-04-15T13:59:59Z

normalize() splits an accented character into its base character and the applied accent.
Then .replace( /[\u0300-\u036f]/g, '' ) removes all the accents that are aggrupated in that codes range.
I think it works with all current and future accented characters.

dtw · 2022-05-23T14:26:47Z

edit 01/17/2021

My new version

function slugify(text) {
  return text
    .toString()                           // Cast to string (optional)
    .normalize('NFKD')            // The normalize() using NFKD method returns the Unicode Normalization Form of a given string.
    .toLowerCase()                  // Convert the string to lowercase letters
    .trim()                                  // Remove whitespace from both sides of a string (optional)
    .replace(/\s+/g, '-')            // Replace spaces with -
    .replace(/[^\w\-]+/g, '')     // Remove all non-word chars
    .replace(/\-\-+/g, '-');        // Replace multiple - with single -
}

NFKD is probably better than NFD. Any feedback is welcome.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize

I broke this:
slugify('Jurassic Park III, 2001 - ★★★')

You get a trailing '-'

jurassic-park-iii-2001-

Maybe add this?
.replace(/\-$/g, ''); // Remove trailing -

kippoisalive · 2022-08-07T23:09:36Z

hey guys how about converting kanji like japanese words for slug?

lazarok09 · 2022-08-07T23:43:21Z

hey guys how about converting kanji like japanese words for slug?
You want to keep they or you want to translate to english ?

torma616 · 2022-10-05T19:05:32Z

edit 01/17/2021
My new version

function slugify(text) {
  return text
    .toString()                           // Cast to string (optional)
    .normalize('NFKD')            // The normalize() using NFKD method returns the Unicode Normalization Form of a given string.
    .toLowerCase()                  // Convert the string to lowercase letters
    .trim()                                  // Remove whitespace from both sides of a string (optional)
    .replace(/\s+/g, '-')            // Replace spaces with -
    .replace(/[^\w\-]+/g, '')     // Remove all non-word chars
    .replace(/\-\-+/g, '-');        // Replace multiple - with single -
}

NFKD is probably better than NFD. Any feedback is welcome.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize

I broke this: slugify('Jurassic Park III, 2001 - ★★★')

You get a trailing '-'

jurassic-park-iii-2001-

Maybe add this? .replace(/\-$/g, ''); // Remove trailing -

Added that in, and also a line to change underscores to hyphens. May not be perfect but its good for my uses!

const slugify = (text) => {
  return text
    .toString()                   // Cast to string (optional)
    .normalize('NFKD')            // The normalize() using NFKD method returns the Unicode Normalization Form of a given string.
    .toLowerCase()                // Convert the string to lowercase letters
    .trim()                       // Remove whitespace from both sides of a string (optional)
    .replace(/\s+/g, '-')         // Replace spaces with -
    .replace(/[^\w\-]+/g, '')     // Remove all non-word chars
    .replace(/\_/g,'-')           // Replace _ with -
    .replace(/\-\-+/g, '-')       // Replace multiple - with single -
    .replace(/\-$/g, '');         // Remove trailing -
}

juanlanus · 2022-10-09T01:21:36Z

@torma616
AFAIK your version, which looks good, is missing the following line below the normalize one:
replace( /[\u0300-\u036f]/g, '' )

The normalize() function splits each accented character in two: the base character, and its accent.
The subsequent replace() line deletes all the accents, which happen to be all in the \u03xx UNICODE block.
Removing the accents requires these two steps.

I got the info for my slugify version from June 6, 2020 from the MDN docs:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize

guillefd · 2022-10-25T16:07:28Z

Works! thanks.

nithincb-oss · 2023-01-23T17:12:59Z

@codeguy - Could you please add an open-source license to this gist?

auvansang · 2024-07-04T09:03:47Z

Look seem that does not work for "đ" char

juanlanus · 2024-07-05T19:33:17Z

@auvansang
You are right, "đ" can not be normalized, because it's not the combination of a letter with an accent, it's a letter by itself.
Check this:
https://stackoverflow.com/questions/2362810/why-doesnt-%C4%90-get-flattened-to-d-when-removing-accents-diacritics

thierryc · 2024-08-01T15:12:54Z

@auvansang
How should the character "đ" be replaced for you—by "d" or another letter?

auvansang · 2024-08-01T15:19:31Z

@auvansang How should the character "đ" be replaced for you—by "d" or another letter?

Yes d is the correct letter

juanlanus · 2024-08-10T21:23:10Z

If "đ" was replaced by "d" it is theoretically possible (albeit not likely) to generate a duplicate slug.
For example if I hat a slug "mad" and generating a new slug the input was "mađ" then I'd have a collision: two "mad" slugs.
For some applications this might be totally irrelevant, because the URLs have a tipically numeric id before the slug, preventing address duplication.
So, the decision on how to replace "đ" depends on the context.

codeguy/slugify.js

shridharkalagi commented Mar 9, 2021

andreasnuesslein commented Mar 16, 2021

iMakedonsky commented Apr 9, 2021

nfrette commented Jun 10, 2021

amranwebdeveloper commented Jun 12, 2021

Oleg-Imanilov commented Aug 31, 2021

juanlanus commented Sep 1, 2021

M4TH76 commented Nov 26, 2021 •

edited

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Tofandel commented Feb 25, 2022

tauseedzaman commented Apr 9, 2022

juanlanus commented Apr 9, 2022

tauseedzaman commented Apr 15, 2022

thierryc commented Apr 15, 2022

thierryc commented Apr 15, 2022

juanlanus commented Apr 15, 2022

dtw commented May 23, 2022 •

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kippoisalive commented Aug 7, 2022

lazarok09 commented Aug 7, 2022

torma616 commented Oct 5, 2022 •

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juanlanus commented Oct 9, 2022

guillefd commented Oct 25, 2022

nithincb-oss commented Jan 23, 2023

auvansang commented Jul 4, 2024 •

edited

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juanlanus commented Jul 5, 2024

thierryc commented Aug 1, 2024

auvansang commented Aug 1, 2024

juanlanus commented Aug 10, 2024

	function string_to_slug (str) {
	str = str.replace(/^\s+\|\s+$/g, ''); // trim
	str = str.toLowerCase();

	// remove accents, swap ñ for n, etc
	var from = "àáäâèéëêìíïîòóöôùúüûñç·/_,:;";
	var to = "aaaaeeeeiiiioooouuuunc------";
	for (var i=0, l=from.length ; i<l ; i++) {
	str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
	}

	str = str.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
	.replace(/\s+/g, '-') // collapse whitespace and replace by -
	.replace(/-+/g, '-'); // collapse dashes

	return str;
	}

codeguy/slugify.js

shridharkalagi commented Mar 9, 2021

andreasnuesslein commented Mar 16, 2021

iMakedonsky commented Apr 9, 2021

nfrette commented Jun 10, 2021

amranwebdeveloper commented Jun 12, 2021

Oleg-Imanilov commented Aug 31, 2021

juanlanus commented Sep 1, 2021

M4TH76 commented Nov 26, 2021 • edited Loading

Vickyb59 commented Dec 18, 2021

Allirey commented Jan 16, 2022 • edited Loading

lazarok09 commented Feb 10, 2022 • edited Loading

Tofandel commented Feb 25, 2022

tauseedzaman commented Apr 9, 2022

juanlanus commented Apr 9, 2022

tauseedzaman commented Apr 15, 2022

thierryc commented Apr 15, 2022

thierryc commented Apr 15, 2022

juanlanus commented Apr 15, 2022

dtw commented May 23, 2022 • edited Loading

kippoisalive commented Aug 7, 2022

lazarok09 commented Aug 7, 2022

torma616 commented Oct 5, 2022 • edited Loading

juanlanus commented Oct 9, 2022

guillefd commented Oct 25, 2022

nithincb-oss commented Jan 23, 2023

auvansang commented Jul 4, 2024 • edited Loading

juanlanus commented Jul 5, 2024

thierryc commented Aug 1, 2024

auvansang commented Aug 1, 2024

juanlanus commented Aug 10, 2024

M4TH76 commented Nov 26, 2021 •

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Allirey commented Jan 16, 2022 •

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lazarok09 commented Feb 10, 2022 •

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dtw commented May 23, 2022 •

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torma616 commented Oct 5, 2022 •

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auvansang commented Jul 4, 2024 •

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