description

# HashMap<K, V>.from constructor

HashMap<K, V>.from(

1. Map other

)

Creates a HashMap that contains all key/value pairs of `other`.

The keys must all be instances of `K` and the values of `V`. The `other` map itself can have any type.

    final baseMap = {1: 'A', 2: 'B', 3: 'C'};
    final fromBaseMap = HashMap<int, String>.from(baseMap);
    print(fromBaseMap); // {1: A, 2: B, 3: C}

## Implementation

    factory HashMap.from(Map<dynamic, dynamic> other) {
      HashMap<K, V> result = HashMap<K, V>();
      other.forEach((dynamic k, dynamic v) {
        result[k as K] = v as V;
      });
      return result;
    }