Open a conditional-visibility wrapper

Emits an opening <div> with the data-show-when attribute so that show_when.js can show/hide the enclosed content based on input state.

Usage

show_when_open(condition_json)

Arguments

condition_json

A JSON string describing the condition (e.g. '{"var":"time_period","op":"in","val":["Wave 1","Wave 2"]}').

Value

Called for its side-effect (cat()).

Details

This is used in generated .qmd chunks – users typically do not need to call it directly.