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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

r"
"
gm

Test String

Code Generator

Language

Generated Code

re = /\"Comment\": \"(.*?)\"/m str = '[{"Comment": "Tbh the chair should\\u2019ve had 4 pistons so Michael could finally eat at the table", "Likes": "4.4K", "Time": "2 years ago", "UserLink": "https://www.youtube.com/channel/UC_aU3uhZDInQSUUosL2uQ9A", "user": "Nates"}, {"Comment": "I want to believe that this isn\'t a screen personality and he is just a genuine sociopath", "Likes": "4.3K", "Time": "7 months ago", "UserLink": "https://www.youtube.com/channel/UCQBxoqlTxL2YNIm_p6FAEfw", "user": "tank head"}, {"Comment": "Can you build a chair that when you say \\u201cI\\u2019d like to make an announcement.\\u201d Pistons push the chair up to make you taller than everyone else", "Likes": "1.9K", "Time": "7 months ago", "UserLink": "https://www.youtube.com/channel/UC3HyXTP6aLjcZp88iOuytpg", "user": "Kitsune"}, {"Comment": "the tazer desk could easily be converted to a torture bed", "Likes": "245", "Time": "3 months ago", "UserLink": "https://www.youtube.com/channel/UCySFNMcZJm4MWAfiaIRpqvg", "user": "Cpt_Azure"}, {"Comment": "I want to imagine that his friends are just locked up in a house threatened hostage and forced to test his robot inventions", "Likes": "1.8K", "Time": "1 year ago", "UserLink": "https://www.youtube.com/channel/UCHZ6qYCGHm44ge2OGGazSVw", "user": "W"}, {"Comment": "\\"I spent 12 hours making this...\\"And 11 months tracking a goldfish in a cage...", "Likes": "492", "Time": "3 months ago", "UserLink": "https://www.youtube.com/channel/UCpNND06DunvPMGrSQqjjM_Q", "user": "Joshbobosh"}, {"Comment": "He should\'ve added a delay to the chair so people get lured into a false sense of security", "Likes": "4.7K", "Time": "1 year ago", "UserLink": "https://www.youtube.com/channel/UCESk3Y2OfMMIgfATOsujI6Q", "user": "AshIsHere"}, {"Comment": "It\'s funny how Yvonne says \\"Is that an electric chair?!\\", And then he goes and builds one like a year later", "Likes": "3K", "Time": "11 months ago", "UserLink": "https://www.youtube.com/channel/UCol-DCuwRT0sS98uBu1oCBA", "user": "MrMoo1452"}, {"Comment": "\\u201cThat is a fuCKING alarm clock.\\u201dI love that quote so much", "Likes": "919", "Time": "6 months ago", "UserLink": "https://www.youtube.com/channel/UCuVPAzq8ORnoK8CcEDpTmHA", "user": "Bababooey"}, {"Comment": "I had an art teacher who said, \\"Don\'t lean on the table!\\" She was very angry when people did, and I\'m assuming she would actually use the tazer table.", "Likes": "79", "Time": "5 months ago", "UserLink": "https://www.youtube.com/channel/UCCzciQr3PjMlYqbMmyjtgDg", "user": "Tom Kas"}, {"Comment": "Make your windshield wipers, automatically wipe in the beat of the music that is played in the car.", "Likes": "3.4K", "Time": "1 year ago", "UserLink": "https://www.youtube.com/channel/UCUfdOys12cHo7waaWkjG4mA", "user": "Benni B."}, {"Comment": "Make a robot that automatically \\u201cpermanently removes\\u201d people who suggest an idea for a robot", "Likes": "84", "Time": "3 months ago", "UserLink": "https://www.youtube.com/channel/UCOh33A3iLMokwaUXI0Y6e6g", "user": "Swish_Cheetah"}, {"Comment": "I like that Michael calls us his \\"worst, most hated enemies\\".\\nYou can really feel the love.", "Likes": "900", "Time": "2 years ago", "UserLink": "https://www.youtube.com/channel/UCeOSKFvurM-glO4TW8SX3EA", "user": "Camera Lizard"}, {"Comment": "\\"Make a robot that poops cereal\\"shredded\\"Make a robot that piss beer\\"genius", "Likes": "361", "Time": "11 months ago", "UserLink": "https://www.youtube.com/channel/UCbSIk0yT8w-sVCI_wNsQkPA", "user": "Ghedo"}, {"Comment": "ya gotta love the fact that the taser desk was acting as an EMP that caused his monitor to shut off several times", "Likes": "626", "Time": "10 months ago", "UserLink": "https://www.youtube.com/channel/UCmqGYYVwZ0nrd5tIxazWddA", "user": "Jackie"}, {"Comment": "I like that the Taser Desk incorporates so much high voltage garbage that it\\u2019s making the electronics in his computer spaz out lmao. Who doesn\\u2019t love a bad homemade EMP", "Likes": "4", "Time": "12 days ago", "UserLink": "https://www.youtube.com/channel/UCfvtdRAITOtzjZIgoKmCK5w", "user": "SilentGuy"}, {"Comment": "The fact everyone fears Michael is just hilarious", "Likes": "224", "Time": "7 months ago", "UserLink": "https://www.youtube.com/channel/UCzdTkBuxvZhOGQAN6eUsfWA", "user": "ipikalive"}, {"Comment": "I love how the taser desk literally constantly has sparks coming off of it which looks amazing, this is all thanks to that one comment", "Likes": "34", "Time": "3 months ago (edited)", "UserLink": "https://www.youtube.com/channel/UC_P1bdtzQhDgAnEZn1TyoBw", "user": "So confused"}, {"Comment": "Build something that looks absolutely terrifying but does nothing and just makes your friends paranoid", "Likes": "29K", "Time": "2 years ago", "UserLink": "https://www.youtube.com/channel/UCqMzTW0oC7B7HM6v8iiWIpg", "user": "Jerry Kat"}, {"Comment": "I love how everyone Michael knows is immediately scared when he talks to them", "Likes": "403", "Time": "1 year ago", "UserLink": "https://www.youtube.com/channel/UCqHG4WQJ7S3tUUo895WFBtQ", "user": "Evan Thorne"}]' # Print the match result str.scan(re) do |match| puts match.to_s end

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 Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html