Regex that matches integers only

Question

I\'m currently using the pattern: \\b\\d+\\b, testing it with these entries:

numb3r 
2
3454 
3.214
test

I only want it to catc

Answer 1

Try /^(?:-?[1-9]\d*$)|(?:^0)$/.

It matches positive, negative numbers as well as zeros.

It doesn't match input like 00, -0, +0, -00, +00, 01.

Online testing available at http://rubular.com/r/FlnXVL6SOq