Creates a Map instance associating the given keys
to values
.
The created map is a LinkedHashMap. A LinkedHashMap
requires the keys to implement compatible operator==
and hashCode
, and it allows null as a key. It iterates in key insertion order.
This constructor iterates over keys
and values
and maps each element of keys
to the corresponding element of values
.
List<String> letters = ['b', 'c']; List<String> words = ['bad', 'cat']; Map<String, String> map = new Map.fromIterables(letters, words); map['b'] + map['c']; // badcat
If keys
contains the same object multiple times, the last occurrence overwrites the previous value.
The two Iterables must have the same length.
factory Map.fromIterables(Iterable<K> keys, Iterable<V> values) = LinkedHashMap<K, V>.fromIterables;
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/Map/Map.fromIterables.html