How to check if an Array is Not Empty in Ruby


How to check if an Array is Not Empty in Ruby ?

Answer

In Ruby, you can use the empty? method to check if an array is not empty.



✐ Examples

1 Check if Given Array with Elements is Not Empty

In this example,

  1. We create an array named numbers with some elements.
  2. We check if the array is not empty using the empty? method and negate it, and store the result in the variable notEmpty.
  3. Finally, we print whether the array is not empty or not.

Ruby Program

numbers = [1, 2, 3]
notEmpty = !numbers.empty?
puts "Array is not empty: #{notEmpty}"

Output

Array is not empty: true

2 Check if Empty Array is Not Empty

In this example,

  1. We create an empty array named emptyArray.
  2. We check if the array is not empty using the empty? method and negate it, and store the result in the variable notEmpty.
  3. Finally, we print whether the array is not empty or not.

Ruby Program

emptyArray = []
notEmpty = !emptyArray.empty?
puts "Array is not empty: #{notEmpty}"

Output

Array is not empty: false

Summary

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




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