How to Access Items in a Set in Ruby


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.




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  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 ?
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  17. How to add an Item to a Set in Ruby ?
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  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 ?
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  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 ?