In this example we are searching for all element/component in JSX that have the is="secondary" prop. This regex was tested with VS Code

(?(?:(?:25[0-5]|(?:2[0-4]|1\d|[1-9]|)\d)\.?\b){4}) Originating from ^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$ at only 43 chars Source: Danail Gabenski

Teste

Validate if class name pass this criteria: A valid name should start with a letter (a-z)[A-Z] , an underscore (_), or a hyphen (-) which is followed by any numbers, hyphens, underscores, letters. A name should be at least two characters long. Cannot start with a digit, two hyphens or a hyphen fo...

A regular expression for extracting the author, repository name, and optional branch from a Bitbucket repository or tree URL. Handles both HTTP(S) and direct Bitbucket links.

A regular expression for extracting the author, repository name, and optional branch from a GitLab repository or tree URL. Handles both HTTP(S) and direct GitLab links.

A regular expression for extracting the author, repository name, and optional branch from a GitHub repository or tree URL. Handles both HTTP(S) and direct GitHub links.

Verification of Application Command names for Discord's API. Useful for Discord applications. Source : discord.dev

Word Patterns - multilanguage Separating words that handle many use cases I needed, more than simple /\bword\b/gi. Below are some targeted test cases and acceptable failed cases: ...

^ - This signifies the start of the expression. https?:// - This matches either "http://" or "https://". (www.)? - This makes the "www." subdomain optional. [A-z0-9]+ - This matches one or more alphanumeric characters for the domain name. . - This matches a literal period character. [A-z0-9]+ - This...

matches a timestamp that is in the format of Aug 14, 2024, 10:12 AM or month shortcode followed by day, year, time in 12 hours

Maches german era notations in date "v. Chr" and "v. Ztr" It is meant to be tolerant : periods and spaces are optional, and it is case insensitive

Simply e-mail pattern for html tag.

"/" - start of regular expression "^" - anchor to beginning of string Group: [a-z0-9]+ "[a-z0-9]" - Latin character or digit "+" - occurring ONE or more times...

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Simple and easy regex to find valid IG hastags in a string

Find specific HTML attributes

self explainatory title, usernames array must not contain any exotic character besides ,

self explainatory title, username must not contain any exotic character.

match offset from utc offset string returned by the timeZoneName property of an Intl.DateTimeFormat object. (see MDN documentation here)