isTrue function

bool isTrue(
  1. bool expression, {
  2. LazyMessage message = _DEFAULT_IS_TRUE_EX_MESSAGE,
})

Implementation

bool isTrue(final bool expression,{ final LazyMessage message = _DEFAULT_IS_TRUE_EX_MESSAGE }) {
    if (expression == null || expression == false) {
        throw new ArgumentError(message());
    }
    return expression;
}