How to check if a Set is Not Empty in Ruby - Step by Step Examples

◀ Previous Next ▶

How to check if a Set is Not Empty in Ruby ?

Answer

To check if a Set is not empty in Ruby, you can use the empty? method or compare the length to zero.

✐ Examples

1 Check if Set is Not Empty Using empty? Method

In this example,

We define a non-empty set named my_set containing elements of a specific type.
We use the empty? method to check if the set is not empty.
If the empty? method returns false, then the set is not empty; otherwise, it is empty.

Ruby Program

require 'set'

my_set = Set.new(['apple', 'banana', 'orange'])

# Check if set is not empty using empty? method
if !my_set.empty?
  puts 'Set is not empty'
else
  puts 'Set is empty'
end

Output

Set is not empty

2 Check if Set is Not Empty Using Length Comparison

In this example,

We define a non-empty set named my_set containing elements of a specific type.
We compare the length of the set to zero.
If the length is greater than zero, then the set is not empty; otherwise, it is empty.

Ruby Program

require 'set'

my_set = Set.new(['apple', 'banana', 'orange'])

# Check if set is not empty using length comparison
if my_set.length != 0
  puts 'Set is not empty'
else
  puts 'Set is empty'
end

Output

Set is not empty

Summary

In this tutorial, we learned How to check if a Set is Not Empty in Ruby language with well detailed examples.

◀ Previous Next ▶

Ruby Tutorials

Ruby How-Tos

How to check if a Set is Not Empty in Ruby - Step by Step Examples

How to check if a Set is Not Empty in Ruby ?

Answer

✐ Examples

1 Check if Set is Not Empty Using empty? Method

Ruby Program

Output

2 Check if Set is Not Empty Using Length Comparison

Ruby Program

Output

Summary

More Ruby Sets Tutorials