Extracting numbers from a string using regular expressions

Question

I am clueless about regular expressions, but I know that they\'re the right tool for what I\'m trying to do here: I\'m trying to extract a numerical value from a string like thi

Answer 1

If there is no chance of there being numbers anywhere but when you need them, you could just do:

\d+

the \d matches digits, and the + says "match any number of whatever this follows"