Module visibility 

Visibility (validation rules, “Evaluation”): design.show resolved against the data in the field’s row context.

Functions

is_visible

Whether a field is visible: its design object’s show shows it. A field without design.show is visible.

show

Whether a design.show value shows its field. The value resolves like a conditional parameter: a condition map selects its value, a ternary its branch and a condition expression that parses completely its value; any other string and any other value is a literal. Only a value that resolves to false hides the field, so a missing value, null, a condition map that selects nothing and a literal string show it. path is the field’s data path, row keys included, and row_keys the positions of the row keys in it.