How to Get Length of a Set in Ruby - Step by Step Examples

How to Get Length of a Set in Ruby ?

Answer

To get the size of a set in Ruby, you can use the size method on the set.


✐ Examples

1 Get Size of Set

In this example,

  1. We create a set named set1 using the Set class with some elements.
  2. We use the size method on the set object set1 to get the number of elements in the set.
  3. The size method returns the size of the set.
  4. Finally, we print the size of the set to standard output.

Ruby Program

require 'set'
set1 = Set.new(['apple', 'banana', 'cherry'])

# Get the size of the set
size = set1.size

# Print the size
puts "Size of set1: #{size}"

Output

Size of set1: 3

2 Get Size of Empty Set

In this example,

  1. We create an empty set named empty_set using the Set class.
  2. We use the size method on the set object empty_set to get the number of elements in the set.
  3. Since the set is empty, the size method returns 0.
  4. Finally, we print the size of the empty set to standard output.

Ruby Program

require 'set'
empty_set = Set.new

# Get the size of the empty set
size = empty_set.size

# Print the size
puts "Size of empty_set: #{size}"

Output

Size of empty_set: 0

Summary

In this tutorial, we learned How to Get Length of a Set in Ruby language with well detailed examples.


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