How to create a List of Sets in Dart

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How to create a List of Sets in Dart ?

Answer

In Dart, you can create a list of sets using the List class for the outer list and the Set class for the inner sets.

✐ Examples

1 Create List of Sets

In this example,

We declare two inner sets named set1 and set2 using the Set class.
We create an outer list named listOfSets using the List class and initialize it with the inner sets.
Finally, we iterate through the list of sets and print each set to standard output.

Dart Program

void main() {
  Set<int> set1 = {1, 2, 3};
  Set<String> set2 = {'a', 'b', 'c'};

  List<Set> listOfSets = [set1, set2];

  for (var set in listOfSets) {
    print(set);
  }
}

Output

{1, 2, 3}
{a, b, c}

2 Create List of Sets with Empty Inner Sets

In this example,

We declare two empty inner sets named emptySet1 and emptySet2.
We create an outer list named listOfEmptySets using the List class and initialize it with the empty inner sets.
Finally, we iterate through the list of sets with empty inner sets and print each set to standard output.

Dart Program

void main() {
  Set<int> emptySet1 = {};
  Set<String> emptySet2 = {};

  List<Set> listOfEmptySets = [emptySet1, emptySet2];

  for (var set in listOfEmptySets) {
    print(set);
  }
}

Output

{}
{}

Summary

In this tutorial, we learned How to create a List of Sets in Dart language with well detailed examples.

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How to create a List of Sets in Dart

How to create a List of Sets in Dart ?

Answer

✐ Examples

1 Create List of Sets

Dart Program

Output

2 Create List of Sets with Empty Inner Sets

Dart Program

Output

Summary

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