How to check if a Set is Empty in Ruby

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How to check if a Set is Empty in Ruby ?

Answer

To check if a Set is empty in Ruby, you can use the empty? method.

✐ Examples

1 Check if Set is Empty

In this example,

We create a Set object named set and initialize it with some elements, or an empty Set if there are no elements.
We use the empty? method on the Set set to determine if it contains any elements.
If the Set is empty, the empty? method returns true; otherwise, it returns false.
We print the result to the standard output to indicate whether the Set is empty or not.

Ruby Program

require 'set'

set = Set.new # Or Set.new(['a', 'b', 'c']) for a non-empty Set
isEmpty = set.empty?
if isEmpty
    puts 'The Set is empty'
else
    puts 'The Set is not empty'
end

Output

The Set is empty

2 Check if Empty Set is Empty

In this example,

We create an empty Set object named emptySet.
We use the empty? method on the Set emptySet to determine if it contains any elements.
Since the Set is empty, the empty? method returns true.
We print the result to the standard output to indicate that the Set is indeed empty.

Ruby Program

require 'set'

emptySet = Set.new
isEmpty = emptySet.empty?
if isEmpty
    puts 'The Set is empty'
else
    puts 'The Set is not empty'
end

Output

The Set is empty

Summary

In this tutorial, we learned How to check if a Set is Empty in Ruby language with well detailed examples.

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How to check if a Set is Empty in Ruby

How to check if a Set is Empty in Ruby ?

Answer

✐ Examples

1 Check if Set is Empty

Ruby Program

Output

2 Check if Empty Set is Empty

Ruby Program

Output

Summary

More Ruby Sets Tutorials