Current week number as a default value

I would need the current week number as a default value for a variable.

How could this be done?

@Rainer where and how do you want to display this information? A simple google search has all the answers - but it will depend where and how you want to display it in Retool

moment().week() I have used. At first there was no value? Now suddenly a value comes, but the wrong one?
What am I doing wrong?


I finally got it, for Germany.