string-length() for decimal questions is unreliable

abureaux — Tue, 27 Feb 2024 17:11:00 GMT

So I was trying to troubleshoot something, and I noticed that string-length for decimal questions stopped behaving as expected for longer numbers.

Here was my set-up:

And results:

At a certain point, string-length() stops working properly on decimal fields. It's misleading, because it does work for smaller character counts, but then stops working around 15ish characters.

All "1" breaks at 22 characters
All "9" breaks at 15 characters

I thought, "well, convert decimal to string and problem solved?". Nope. In this example, I first convert the value to a string:

topic string-length() for decimal questions is unreliable in ArcGIS Survey123 Questions

string-length() for decimal questions is unreliable