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Maps in Dart and Flutter
Introduction An object that maps keys to values. Both keys and values in a map may be of any type. A Map is a dynamic collection. In other words, Maps can grow and shrink at runtime. Example void main() { Map<String, String> stateNamesByStateCode = {"AL": "Alamaba", "AK": "Alaska", "AR": "Arkansas", "AZ": "Arizona" }; stateNamesByStateCode["GA"] = "Georgia"; for (String key in stateNamesByStateCode.keys){ print(stateNamesByStateCode[key]); } print("\nGet just one: ${stateNamesByStateCode["AK"]}"); } Example Output Alamaba Alaska Arkansas Arizona Georgia Just one: Alaska