verifyAllLowercase method

void verifyAllLowercase(
  1. String value
)

Implementation

void verifyAllLowercase(String value) {
  for(var i = 0; i < value.length; i++) {
    final c = value[i];
    if(c != c.toLowerCase()) {
      throwUsageError("Expected $value to be all lowercase");
    }
  }
}