guardArgument function

void guardArgument(
  1. bool isConditionMet, [
  2. String message = _kDefaultGuardMessage
])

Throws ArgumentError if isConditionMet is false, with message.

Implementation

void guardArgument(bool isConditionMet, [String message = _kDefaultGuardMessage]) {
  if (!isConditionMet) throw ArgumentError(message);
}