How to check if a array is empty in Ruby

In this tutorial, we are going to learn about how to check if a given array is empty or not in ruby.

Checking array is empty

To check if a array is empty or not, we can use the built-in empty? method in Ruby.

The empty? method returns true if a array is empty; otherwise, it returns false.

Here is an example:

prices = []

if prices.empty?
   puts "array is empty"
else
   puts "array is not empty"
end

Output:

"array is empty"

Similarly, we can also use the length method to check for an empty array in Ruby.

Example:

prices = []

if !prices.length
   puts "array is empty"
else
   puts "array is not empty"
end