mapKeys<R> method

Map<R, V> mapKeys<R>(
  1. R transform(
    1. K key
    )
)

Transform map keys

Implementation

Map<R, V> mapKeys<R>(R Function(K key) transform) {
  final transformed = <R, V>{};
  forEach((key, value) {
    transformed[transform(key)] = value;
  });
  return transformed;
}