How to get a Random Item in a Set in JavaScript


How to get a Random Item in a Set in JavaScript ?

Answer

To get a random item from a set in JavaScript, you can convert the Set to an array and then use the Math.random() function to generate a random index.



✐ Examples

1 Get Random Item from Set

In this example,

  1. We create a Set named mySet containing elements.
  2. We convert the Set to an array using the spread operator [...mySet].
  3. We generate a random index within the range of the array's length using Math.random().
  4. We retrieve the random item from the array using the random index.
  5. Finally, we log the random item to the console.

JavaScript Program

let mySet = new Set(['Apple', 'Banana', 'Orange', 'Mango']);
let myArray = [...mySet];
let randomIndex = Math.floor(Math.random() * myArray.length);
let randomItem = myArray[randomIndex];
console.log('Random item from set:', randomItem);

Output

Random item from set: Mango

Summary

In this tutorial, we learned How to get a Random Item in a Set in JavaScript language with well detailed examples.




More JavaScript Sets Tutorials

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