tryValueOf<V> method

V? tryValueOf<V>(
  1. String fieldName
)

Returns the value of fieldName, or null when the field is unavailable.

Implementation

V? tryValueOf<V>(String fieldName) {
  if (!dataSet.hasField(fieldName)) {
    return null;
  }
  final value = _valueOf?.call(fieldName);
  if (value == null || value is V) {
    return value as V?;
  }
  return null;
}