I have a text input that you can input text and numbers into. I would like it so that you can’t move onto the next scene until you have an input that is exactly 3 letters/numbers. I can’t find anything about this online and I’m kind of new to Gdevelop.
Review the expression documentation on the wiki, there is a “String Length” expression (either String Length() or StrLEngth(), I don’t remember hence why I’m pointing you to the wiki.
Then you can use that in whatever event you want, or even do a “Compare two numbers” condition and just compare that expression directly against 3.