.keys

In Dart, the .keys property returns an iterable collection containing all the keys in a map.

Syntax

myMap.keys

• myMap: The map name that needs to be searched.

Example

The following example displays the usage of the .keys property:

void main() {
  Map<String, String> adventurers = {
    '001': 'Alice the Archer',
    '002': 'Bob the Barbarian',
    '003': 'Charlie the Cleric'
  };

  for (var id in adventurers.keys) {
    print(id);
  }
}

The above example produces the following output:

001
002
003