BaranselThe map structure is one of the list types that allows us to keep more than one data. The most important features of
Map:
- It works as key – value.
- unordered
We can think of this structure as a dictionary. A word has only one meaning. Here too, word=key, meaning=value
corresponding to the word.
It is also important because we use the Map structure a lot when using a database. Below are examples of uses of the
map structure.
main() {
Map<String, int> map1 = {'zero': 0, 'one': 1, 'two': 2};
print(map1);
Map map2 = {'zero': 0, 'I': 'one', 10: 'X'};
print(map2);
var map3 = {'zero': 0, 'I': 'one', 10: 'X'};
print(map3);
}
Output:
{zero: 0, one: 1, two: 2}
{zero: 0, I: one, 10: X}
{zero: 0, I: one, 10: X}
main() {
List<String> letters = ['I', 'V', 'X'];
List<int> numbers = [1, 5, 10];
Map<String, int> map = Map.fromIterables(letters, numbers);
print(map);
}
Output:
{I: 1, V: 5, X: 10}
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