Extract number from string in Ruby

Question

I\'m using this code:

s = line.match( /ABCD(\\d{4})/ ).values_at( 1 )[0] 

To extract numbers from strings like:

ABCD1234
AB         


        

Answer 1

your_input = "abc1cd2"
your_input.split(//).map {|x| x[/\d+/]}.compact.join("").to_i

This should work.