Select a checker based on the result of the specified conditional. If the conditional evaluates to true, the then checker is used. Otherwise, the else checker is used.
true
then
else
alwaysValid is the default checker.
alwaysValid
Select a checker based on the result of the specified conditional. If the conditional evaluates to
true, thethenchecker is used. Otherwise, theelsechecker is used.alwaysValidis the default checker.