How to Access Items in a Set in Ruby - Step by Step Examples



How to Access Items in a Set in Ruby ?

Answer

In Ruby, you can access items in a set using iteration or specific methods provided by the Set data structure.



✐ Examples

1 Access Items in a Set using Iteration

In this example,

  1. We create a Set named string_set containing strings.
  2. We use a for loop to iterate over the elements in the set and print each element.

Ruby Program

require 'set'

string_set = Set.new(["Apple", "Banana", "Orange", "Grapes"])

string_set.each do |item|
  puts item
end

Output

Apple
Banana
Orange
Grapes

2 Access Items in a Set using Specific Methods

In this example,

  1. We create a Set named number_set containing integers.
  2. We use the size method to get the number of elements in the set.
  3. We use the include? method to check if an item exists in the set.

Ruby Program

require 'set'

number_set = Set.new([1, 2, 3, 4])

puts "Number of elements: #{number_set.size}"
puts "Does set contain 3? #{number_set.include?(3)}"

Output

Number of elements: 4
Does set contain 3? true

Summary

In this tutorial, we learned How to Access Items in a Set in Ruby language with well detailed examples.




More Ruby Sets Tutorials

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