Validate negative and positive decimal numbers with RegEx

Question

I am trying to build a regex which will allow both negative and positive decimal numbers with the following rules.

1. there can not be more than 2 digits after de

Answer 1

My own regex:

var rgx = /^(-{1}?(?:([0-9]{0,10}))|([0-9]{1})?(?:([0-9]{0,9})))?(?:\.([0-9]{0,3}))?$/;