description

# Map<K, V> constructor Null safety

Map<K, V>()

Creates a Map instance with the default implementation, LinkedHashMap.

This constructor is equivalent to the non-const map literal `<K,V>{}`.

A `LinkedHashMap` requires the keys to implement compatible `operator==` and `hashCode`, and it allows null as a key. It iterates in key insertion order.

## Implementation

    external factory Map();