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 …

Many times I'm using the string match function to know if a string matches a regular expression.

This is nonsense, it has nothing to do with RegExp. How does this address the question if you e.g. want to test if str1 exactly matches /[a-z]{3}/?

24 If you only need to test an input string to match a regular expression, RegExp.test is most appropriate. It will give you a boolean return value which makes it ideal for conditions. …

Sep 5, 2008 · Keep in mind that one should not rely on JavaScript validation alone, as JavaScript can be easily disabled by the client. Furthermore, it is important to validate on the server side. …

How to check if variable contains valid UUID/GUID identifier? I'm currently interested only in validating types 1 and 4, but it should not be a limitation to your answers.

I want to test a given string against 20 or so regular expressions. What's a clean way to do this in Javascript? I'm more concerned about clean code and readability than efficiency (but I don't …

Dec 22, 2015 · I need to check whether a word starts with a particular substring ignoring the case differences. I have been doing this check using the following regex search pattern but that …

Aug 26, 2019 · Check if a JavaScript string includes a substring that matches a regex. I have tried string.includes (substring) var myString = "This is my test string: AA.12.B.12 with some other …

Jun 22, 2013 · And, to be honest, what OP wanted was just to "check if the input string is a valid regex or not"; there were no constraints on the input length specifically, so any string could be …