How to define a range from -50 to 50 using regular expression

Asked Oct 01 '20 at 08:19

Active Oct 01 '20 at 08:32

Viewed 40 times

my question is, how to define a regular expression, if a range is between -50 to 50.

I have used this regular expression:

'\\b(-?[1-9]|-?[1-4][0-9]|-?50|[0-9])\\b'

but it can only check from 0 to 50

Why I use this pattern, because I use this pattern for input field such like this:

<inpit [pattern]="regex">

this pattern can only accept regex string

any solutions??

edited Oct 01 '20 at 08:32

asked Oct 01 '20 at 08:19

user1938143

6

Why do you want to use regex for this? Why not use a simple range comparison in your JavaScript code? – Tim Biegeleisen Oct 01 '20 at 08:21
1

Match from 0 to 50 and make the - optional `-?\b(?:\d|[1-4]\d|50)\b` – The fourth bird Oct 01 '20 at 08:22
you could generate your regex pattern in a loop; no need to write it manually – Cedric Druck Oct 01 '20 at 08:24
because I use this pattern for input pattern, which can only use regex. such like this: – user1938143 Oct 01 '20 at 08:28
Hi Cedric, can u give more information? – user1938143 Oct 01 '20 at 08:31

0 Answers0