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Need to FULLY Break Out EVERY Component of a URL? Like, as in "every constituent element individually accessible in its own named capture group?" Need it to be pre-optimized and fully ECMA-compliant? Want to see exhaustive unit tests proving these claims (144 are included; all 144 execute in 6.5ms. ...

This works against a list of hyperlinks from the 'USS Marmora (1862)' article You can include File: pages by removing the File:| from the regex. I could improve how the remaining query for urls containing index.php, for now I recommend splitting in your chosen programming language. ...

A regex to find if a postcode is in Auckland region (New Zealand)

ECMAScript simple regex for email validation

Validates that a given string is a number of up to 15 integer digits and up to 2 decimal digits. Group separators could be either comma or space class but can't be mixed. Decimal separator could be either comma (if comma was not a group delimiter) or dot. This variation uses small captures for mode...

Case insensitive (of course) All words can all be separated by nothing, spaces, periods, slashes, dashes, or underscores. (So "PO Box 123", "P.O. Box 123", "PO-Box 123", "PO_Box123", etc. all match.) Some valid abbreviations are P/Post/Postal, O/Off/Office, and B/Box/Bx/Bin (as well as N/No/Num/Numb...

(.)\/\/(.)

Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/

Not only validates valid date/time, but also the number of days in a month (including leap year), and both Z and UTC offset.

text has numbers

Matches the data sent by the twitch IRC and captures into various groups

By inserting this regex in a programming language to test it against Codeforces 1800A you'll solve the task

匹配带引号内容，被引号包含的内容 结构($x) ((前引号)(内容)(后引号)) 整体内容(包含引号)...

Sustitution of comments (one line) // Example ~ input (before) ↓↓ : // comment textplain other-text ...

This regex match group (country & Prefix) Separated by spaces or \s+ ↓↓ Example ↓↓ Australia 61 Dominica 1 (767) República Dominicana 1 (809/829/849) ...

ragex solution for free code camp positive-and-negative-lookahead first assertion is (?=\w{6,}) where im matching for any char (a-z0-9_) and repeating the char matching 6 times, in other words, verifying that this word has 6 char being them a-z or digits. the second assertion was more difficult to...

(\w+)(\s)(\w+)\2(\w+) in this exercise we have to use capture groups and then replace the string order to 'three two one'. But first, when you are using the capture group you may have asked yourself why the code below does not work: (\w+)(\s)\1\2\1 to match the sting "one two three"...

Phone numbers in Belgium. The pattern does match with delimiters such as [\s./-] No global length is checked Accepts number starting by 0 for local dialing Accepts number starting by + (+32 in these tests)

resolving the free code camp reuse-patterns-using-capture-groups problem let repeatNum = "42 42 42"; let reRegex = /^(\d+)([" "])\1\2\1$/; ^ starts with (\d+) a digit with at least one char (or else will count spaces) and have a([" "])(space) after the digit and \1 to repeat the...