ONPOP function

String ONPOP(
  1. String stateName, {
  2. String? DO,
  3. String? ELSE,
})

Recursive self invoke is dangerous!!!(NOT TESTED YET)

Implementation

String ONPOP(String stateName, {String? DO, String? ELSE}) {
  return ON(stateName, POP: stateName, DO: DO, ELSE: ELSE);
}