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Dart, Google Flutter, maps -

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

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