How to Get Length of a Set in Dart - Step by Step Examples

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How to Get Length of a Set in Dart ?

Answer

To get the length of a set in Dart, you can use the length property of the Set class.

✐ Examples

1 Get Length of a Set with Elements

In this example,

We declare a variable named mySet and initialize it with a set of string elements using the Set class.
We use the length property of mySet to get the number of elements in the set.
Finally, we print the length of the set to the console using print.

Dart Program

void main() {
  // Declare and initialize a set
  Set<String> mySet = {'apple', 'banana', 'orange'};

  // Get the length of the set
  int length = mySet.length;

  // Print the length of the set
  print('Length of the set: $length');
}

Output

Length of the set: 3

2 Get Length of an Empty Set

In this example,

We declare an empty set variable named emptySet using the Set class and initialize it with no elements.
We use the length property of emptySet to get the number of elements in the set.
Finally, we print the length of the set to the console using print.

Dart Program

void main() {
  // Declare and initialize an empty set
  Set<String> emptySet = {};

  // Get the length of the empty set
  int length = emptySet.length;

  // Print the length of the empty set
  print('Length of the empty set: $length');
}

Output

Length of the empty set: 0

Summary

In this tutorial, we learned How to Get Length of a Set in Dart language with well detailed examples.

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How to Get Length of a Set in Dart - Step by Step Examples

How to Get Length of a Set in Dart ?

Answer

✐ Examples

1 Get Length of a Set with Elements

Dart Program

Output

2 Get Length of an Empty Set

Dart Program

Output

Summary

More Dart Sets Tutorials