How to Get Length of a Set in Dart


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,

  1. We declare a variable named mySet and initialize it with a set of string elements using the Set class.
  2. We use the length property of mySet to get the number of elements in the set.
  3. 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,

  1. We declare an empty set variable named emptySet using the Set class and initialize it with no elements.
  2. We use the length property of emptySet to get the number of elements in the set.
  3. 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.




More Dart Sets Tutorials

  1. How to create an Empty Set in Dart ?
  2. How to Initialize a Set in Dart ?
  3. How to Get Length of a Set in Dart ?
  4. How to create a Set of size N in Dart ?
  5. How to create a Set of Numbers from 1 to N in Dart ?
  6. How to create a Set of integers in Dart ?
  7. How to create a Set of Strings in Dart ?
  8. How to Access Items in a Set in Dart ?
  9. How to get a Random Item in a Set in Dart ?
  10. How to Iterate Over a Set in Dart ?
  11. How to check if a Set is Empty in Dart ?
  12. How to check if a Set is Not Empty in Dart ?
  13. How to get Subset from a Set in Dart ?
  14. How to check if a Specific Item is present in the Set in Dart ?
  15. How to check if a Set contains all the items of Another Set in Dart ?
  16. How to Sort Items of a Set in Dart ?
  17. How to Copy a Set in Dart ?
  18. How to add an Item to a Set in Dart ?
  19. How to find Union of Two Sets in Dart ?
  20. How to find Intersection of Two Sets in Dart ?
  21. How to check if Two Sets are Equal in Dart ?
  22. How to Convert a Set of Integers to a Set of Strings in Dart ?
  23. How to Convert a Set of Strings to a Set of Integers in Dart ?
  24. How to Convert a Set of Floats to a Set of Strings in Dart ?
  25. How to Convert a Set of Strings to a Set of Floats in Dart ?
  26. How to Filter Items of a Set based on a Condition in Dart ?
  27. How to Remove Specific Item from a Set in Dart ?
  28. How to Remove Items from Set based on a Condition in Dart ?
  29. How to create a Set of Sets in Dart ?