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

/
/
gi

Test String

Code Generator

Language

Generated Code

const regex = /([\d]{1,2})\s+([\w]+)\s+([\d]{4})\s+-\s+([\d]{1,2})\s+([\w]+)\s+([\d]{4})\s+([\d]{1,2})\s+N[a,ä]chte\s+([.\s\S]+)\s+DERTOUR/gi; // Alternative syntax using RegExp constructor // const regex = new RegExp('([\\d]{1,2})\\s+([\\w]+)\\s+([\\d]{4})\\s+-\\s+([\\d]{1,2})\\s+([\\w]+)\\s+([\\d]{4})\\s+([\\d]{1,2})\\s+N[a,ä]chte\\s+([.\\s\\S]+)\\s+DERTOUR', 'gi') const str = `Mit freundlichen Grüßen i.A. Center Parcs Europe N.V. Tel.: 0221-97303042 Fax: 0221-97303019 EMail: dertour@groupepvcp.com Vertragspartner: Center Parcs Europe N.V.; Korrespondenzadresse: Kaltenbornweg 1-3, 50679 Köln Geschäftsführer: Pascal R.L. Ferracci, Mark David Haak Wegmann Von: ltr-staedte.fra@dertouristik.com <ltr-staedte.fra@dertouristik.com> Gesendet: Montag, 4. Juli 2016 14:07 An: PVCP, Dertour Betreff: ADVISING=2016/07/04, SeqNo=738, RefNo=201607042684 CPNK§ Center Parcs Nordseeküste GmbH Attn.: Frau Schwamborn Kaltenbornweg 1-3 D-50679 Köln BRV10888 Center Parcs Park Nordseeküste -- OK gebucht -- DER-REF.: 671509446-3 RES-DAT.: 04 JUL 2016 Personen: 6 Erw. Kopie 01 X BK792 ( EUR 917.60 ) 08 JUL 2016 - 15 JUL 2016 7 Nächte Bestätigt nach Anfrage Frau MENTHE/URSULA Herr MENTHE/CHRISTOPH Herr MENTHE/HEIKO Frau MENTHE/CHRISTINA Kind MENTHE/SILJA (08) Kind MENTHE/JANDRIK (04) BRV10888 Center Parcs Park Nordseeküste -- Bitte stornieren -- DER-REF.: 671509446-2 RES-DAT.: 29 JUN 2016 Personen: 6 Erw. Kopie: kein komplettes Storno - nur Umbuchung auf Termin 08.-15.07. 01 X BK792 ( EUR 1,359.20 ) 08 JUL 2016 - 18 JUL 2016 10 Nächte Freesale Frau MENTHE/URSULA Herr MENTHE/CHRISTOPH Herr MENTHE/HEIKO Frau MENTHE/CHRISTINA Kind MENTHE/SILJA (08) Kind MENTHE/JANDRIK (04) DERTOUR GmbH & Co. KG Erlebnisparks FAX: 069/9588-5122 ++ ENDE AVIS ++`; // 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