Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

const regex = /(\d{2}\s*\d{2})\s*[\W*]\s*(\d{3,6})/gm; // Alternative syntax using RegExp constructor // const regex = new RegExp('(\\d{2}\\s*\\d{2})\\s*[\\W*]\\s*(\\d{3,6})', 'gm') const str = ` серия 3204 09988, выдан 07.02.2005г, Отделом Внутренних Дел серия 3204 № 099881 , 32 04 № 099881 ОВД р-на 07.02.2005г. серия 3204 № 099881 ,lorem серия 3204 номер 099881, выдан 07.02.2005г, Отделом Внутренних Дел обл. код подразделения: 569-007 паспорт 32 04 099881 серия 32 03 818655, выдан серия 32 11 045497, выдан 15.03.2011г., Серия 3214 № 426428 Выдан 03.03.2011 Отдел Серия 32 10 № 980598 Выдан 03.07.2010 Отдел УФМС \\ 32 08 803828 ОУФМС России по области Паспорт 32 14 номер 498391 Паспорт серия 80 02 номер 279 781 по Оренбургской 31.04.2019 Паспорт 32 10 966241 `; // Reset `lastIndex` if this regex is defined globally // regex.lastIndex = 0; let m; while ((m = regex.exec(str)) !== null) { // This is necessary to avoid infinite loops with zero-width matches if (m.index === regex.lastIndex) { regex.lastIndex++; } // The result can be accessed through the `m`-variable. m.forEach((match, groupIndex) => { console.log(`Found match, group ${groupIndex}: ${match}`); }); }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions