How do I check if my string ends with WA followed by 9 digit

Question

I want to validate my string input with regx in typescript/javascript.

string input is 9 digit followed by WA

I tried using below two Regx, its able to validate digit part, but couldn't validate end of string to be WA.

val.matches('^[0-9]') && val.matches("WA$") 
val.matches('^[0-9]WA$')

looks like regx was correct, I was using it incorrectly in context of YUP library. — Krunal Parmar, Jun 10 '20 at 07:30

Tim Biegeleisen · Answer 1 · 2020-06-10T07:32:00.220

4

You could use a regex approach with test():

var input = "text 123456789wa";
if (/\d{9}WA$/i.test(input)) {
    console.log("MATCH");
}

edited Jun 10 '20 at 07:32

answered Jun 10 '20 at 05:34

Tim Biegeleisen

If you need to make sure a string contains only 9 digits followed by WA, you can use this regexp: `/^\d{9}WA$/` – sneas Jun 10 '20 at 05:38
@sneas I actually see 2 (3?) problem descriptions, between the title and question, but I welcome your comment because it covers one of the other question readings. – Tim Biegeleisen Jun 10 '20 at 05:39
also how can I make WA case-insensitive? – Krunal Parmar Jun 10 '20 at 07:31
@KrunalParmar Hi, just use the `/i` flag at the end of the regex pattern, `i` is short for case insensitive, check the updated answer. – Tim Biegeleisen Jun 10 '20 at 07:32

1 Answers1