isIn function

bool? isIn(
  1. String str,
  2. List<Object> values
)

check if the string is in a array of allowed values

Implementation

bool? isIn(String str, List<Object> values) {
  if (values.isEmpty) {
    return false;
  }

  // convert each value to a String
  values = values.map((e) => e.toString()).toList();

  return values.contains(str);
}