How to check if a Set contains all the items of Another Set in Dart - Step by Step Examples

How to check if a Set contains all the items of Another Set in Dart ?

Answer

To check if a set contains all the items of another set in Dart, you can use the containsAll method of the Set class.

✐ Examples

1 Check if One Set of Integers contains All Items of Another Set

In this example,

We create two sets named setA and setB and initialize them with some integer elements.
We use the containsAll method of setA to check if all elements in setB are also present in setA.
The containsAll method returns a boolean value: true if setA contains all elements of setB, and false otherwise.
We print the result to the console to verify whether setA contains all elements of setB.

Dart Program

void main() {
  Set<int> setA = {1, 2, 3, 4, 5};
  Set<int> setB = {2, 3};
  bool containsAll = setA.containsAll(setB);
  print('Does setA contain all elements of setB? $containsAll');
}

Output

Does setA contain all elements of setB? true

2 Check if One Set of Strings contains All Items of Another Set

In this example,

We create two sets named setA and setB and initialize them with some string elements.
We use the containsAll method of setA to check if all elements in setB are also present in setA.
The containsAll method returns a boolean value: true if setA contains all elements of setB, and false otherwise.
We print the result to the console to verify whether setA contains all elements of setB.

Dart Program

void main() {
  Set<String> setA = {'apple', 'banana', 'cherry'};
  Set<String> setB = {'banana', 'cherry'};
  bool containsAll = setA.containsAll(setB);
  print('Does setA contain all elements of setB? $containsAll');
}

Output

Does setA contain all elements of setB? true

Summary

In this tutorial, we learned How to check if a Set contains all the items of Another Set in Dart language with well detailed examples.

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How to check if a Set contains all the items of Another Set in Dart - Step by Step Examples

How to check if a Set contains all the items of Another Set in Dart ?

Answer

✐ Examples

1 Check if One Set of Integers contains All Items of Another Set

Dart Program

Output

2 Check if One Set of Strings contains All Items of Another Set

Dart Program

Output

Summary

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