Check if text is numeric

Is it possible to check if an input is numeric ?

ATM I send an Ajax Request to a php file there I check if the text is numeric or not... Is there a way to do that in Construct ? Found no expression for that.

Do a system compare:

Text.Text = str(int(Text.Text))

Thank you that's genius.

Text = Text -> to Int -> to String

Fuu = Fuu -> false -> false

1 = 1 -> 1 -> 1