string - Regex not operator - Stack Overflow
Use .replace() with a global regex flag, since .replaceAll() is not supported by a lot of browsers and also node.
Using Regular Expressions to Exclude or Negate Matches - Squash
Sep 12, 2023 · Regular expressions are a powerful tool for matching patterns in code. But what if you want to find lines of code that don't contain a specific word? In this article, you will learn …
Regular expression syntax cheat sheet - JavaScript | MDN
5 days ago · Non-word character class escape: Matches any character that is not a word character from the basic Latin alphabet. Equivalent to [^A-Za-z0-9_]. For example, /\W/ or /[^A …
How to Negate a Whole Character Sequence in Regular Expressions ...
Jan 5, 2026 · Regular expressions (regex) are a powerful tool for pattern matching and text manipulation, used across programming languages, text editors, and command-line tools. …
Regular Expression Language - Quick Reference - .NET
Jun 18, 2022 · In this quick reference, learn to use regular expression patterns to match input text. A pattern has one or more character literals, operators, or constructs.
RegExr: Learn, Build, & Test RegEx
Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.
Creating a Regex expression with a “not” condition for a specific ...
Jul 1, 2018 · So you’re looking for lines that contain string1 but not string2? Try to write questions simply and clearly.
regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
Regex - how to tell something NOT to match? - Stack Overflow
Jun 3, 2010 · How can I create a regex NOT to match something? For example I want to regex to match everything that is NOT the string "www.petroules.com". I tried [^www\.petroules\.com] …
Regex Tutorial - How to write Regular Expressions
Dec 22, 2025 · A regular expression (regex) is a sequence of characters that defines a search pattern. It is mainly used for pattern matching in strings, such as finding, replacing, or …