How to check if a Set contains all the items of Another Set in Ruby

How to check if a Set contains all the items of Another Set in Ruby ?

Answer

To check if a set contains all the items of another set in Ruby, you can use the subset? method.


✐ Examples

1 Check if One Set is a Subset of Another Set

In this example,

  1. We create two sets named setA and setB containing some elements.
  2. We use the subset? method of setA to check if all elements of setB are also present in setA.
  3. The subset? method returns a boolean value: true if setA is a subset of setB, and false otherwise.
  4. We print the result to the console to verify whether setA is a subset of setB.

Ruby Program

require 'set'

setA = Set.new([1, 2, 3, 4, 5])
setB = Set.new([2, 3])
is_subset = setA.subset?(setB)
puts 'Is setA a subset of setB? ' + is_subset.to_s

Output

Is setA a subset of setB? false

2 Check if One Set is a Superset of Another Set

In this example,

  1. We create two sets named setA and setB containing some elements.
  2. We use the superset? method of setA to check if all elements of setB are also present in setA.
  3. The superset? method returns a boolean value: true if setA is a superset of setB, and false otherwise.
  4. We print the result to the console to verify whether setA is a superset of setB.

Ruby Program

require 'set'

setA = Set.new([1, 2, 3, 4, 5])
setB = Set.new([2, 3])
is_superset = setA.superset?(setB)
puts 'Is setA a superset of setB? ' + is_superset.to_s

Output

Is setA a superset of setB? true

Summary

In this tutorial, we learned How to check if a Set contains all the items of Another Set in Ruby language with well detailed examples.


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