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ntatko/main.dart

Created June 17, 2022 06:44
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Introduction to types in Dart
Raw
main.dart
/// DART TYPES
void main() {
// numbers
int? integer = null;
double? fraction = 1.0;
// strings
String thisString = "this is a string. 😜";
// booleans
bool isReady = false; // true
// List
List list1 = [1, 2, 3, 4, 5, "thing", false];
List<String>? list2 = ["a", "b", "c"];
List<int> list3 = [1, 2, 3, 4, 5];
List<int> list4 = [1, 2, 3, 4, 5];
List<int> list5 = [5, 4, 3, 2, 1];
// Map
Map map1 = {'key': 'value', 'key2': 'value2', 1: false, false: "yes"};
Map<String, String> map2 = {'key': 'value', 'key2': 'value2'};
Map<String, dynamic>? map3 = {'key': 4, 'key2': "abc"};
// Set
Set set1 = {1, 2, 3, 4, 5};
Set<int> set2 = {5, 4, 3, 2, 1};
Set<String> set3 = {"5", "4", "3", "2", "1"};
}
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