Adds all key/value pairs of other to this map.
If a key of other is already in this map, its value is overwritten.
The operation is equivalent to doing this[key] = value for each key and associated value in other. It iterates over other, which must therefore not change during the iteration.
void addAll(Map<String, String> other) {
other.forEach((k, v) {
this[k] = v;
});
}
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-html/Storage/addAll.html