RegExp.prototype.test () - JavaScript | MDN - MDN Web Docs
Jul 10, 2025 · The test() method of RegExp instances executes a search with this regular expression for a match between a regular expression and a specified string. Returns true if …
JavaScript RegExp test () Method - W3Schools
Description The test () method tests for a match in a string. If it finds a match, it returns true, otherwise it returns false.
How to check whether a string contains a substring in JavaScript?
Nov 24, 2009 · Usually I would expect a String.contains() method, but there doesn't seem to be one. What is a reasonable way to check for this?
Check whether a string matches a regex in JS - Stack Overflow
I want to use JavaScript (I can also use jQuery) to do check whether a string matches the regex ^([a-z0-9]{5,})$, and get a true or false result. match() seems to check whether part of a string …
Select-String (Microsoft.PowerShell.Utility) - PowerShell
The Select-String cmdlet uses regular expression matching to search for text patterns in input strings and files. You can use Select-String similar to grep in Unix or findstr.exe in Windows. …
JavaScript String Search - W3Schools
JavaScript String search () The search() method searches a string for a string (or a regular expression) and returns the position of the match:
ansible.builtin.search test – Does string match a regular expression
Oct 8, 2025 · ansible.builtin.search test – Does string match a regular expression Note This test plugin is part of ansible-core and included in all Ansible installations. In most cases, you can …
String.prototype.search () - JavaScript | MDN
Jul 10, 2025 · The search() method of String values executes a search for a match between a regular expression and this string, returning the index of the first match in the string.
Cell contains specific text - Excel formula | Exceljet
Feb 12, 2025 · To check if a cell contains specific text (i.e. a substring), you can use the SEARCH function together with the ISNUMBER function. In the example shown, the formula in D5 is: …
Test a String with Regex – Online String Tools
Simple, free and easy to use online tool that tests a string with a regex. No intrusive ads, popups or nonsense, just a string regexp tester. Load a string – do a regex check.