Conditional Visibility if another field is blank

[JasonCyphers]

Want to create an expression that only makes field B visible if field A is blank/null/empty.

Is that possible?  If so, what would the expression look like?

[jcarlson]

When you configure your form, the simple expression builder should be able to handle it.

And in Arcade, that's:

IsEmpty($feature["some_field"])