Regex: Check if string contains at least one digit

Question

I have got a text string like this:

test1test

I want to check if it contains at least one digit using a regex.

What would this reg

Answer 1

The regular expression you are looking for is simply this:

[0-9]

You do not mention what language you are using. If your regular expression evaluator forces REs to be anchored, you need this:

.*[0-9].*

Some RE engines (modern ones!) also allow you to write the first as \d (mnemonically: digit) and the second would then become .*\d.*.