Regex to allow only number(integer no decimal points) between -130 to 30

Issue

Already done regex for 0 to 50

^(?:[1-9]|[1-4][0-9]|50)$

its working fine. Now trying to write with negative numbers like regex only allow -130 to 30 without decimal points.

Solution

^(\-[1-9][0-9]?|\-1(0[0-9]|[12][0-9]|30)|[0-9]|[12][0-9]|30)$

• \-[1-9][0-9]? checks for -99 to -1
• \-1(0[0-9]|[12][0-9]|30) checks for -130 to -100
• [0-9]|[12][0-9]|30 checks for 0 to 30

Answered By - dork