flutter get key from map
String key = values.keys.elementAt(index);flutter get key from map
String key = values.keys.elementAt(index);flutter create new map
Map<String, int> map1 = {'zero': 0, 'one': 1, 'two': 2};
Map map2 = {'zero': 0, 'I': 'one', 10: 'X'};
var map3 = {'zero': 0, 'I': 'one', 10: 'X'};flutter map key/value
void main() {
final testMap = {"a": 1, "b": 2, "c": 3, "d": 4, "e": 5};
for (final mapEntry in testMap.entries) {
final key = mapEntry.key;
final value = mapEntry.value;
print('Key: $key, Value: $value'); // Key: a, Value: 1 ...
}
}dart object to map
class Human {
String name;
int age;
Map<String, dynamic> toMap() {
return {
'name': name,
'age': age,
};
}
}Copyright © 2021 Codeinu
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