Regular Expressions (Regex)<p><strong>Regular Expressions (Regex)</strong> are pattern-matching expressions used for validation, parsing, search/replace, data cleanup, text processing, scripting, and programming workflows across many languages and tools.</p><p><strong>Additional Resources</strong>:</p><ul><li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions" target="_blank" rel="noopener">MDN regular expressions</a></li><li><a href="https://en.wikipedia.org/wiki/Regular_expression" target="_blank" rel="noopener">Regular expression overview</a></li><li><a href="https://www.regular-expressions.info/reference.html" target="_blank" rel="noopener">Regex syntax reference</a></li></ul>