Ruby | Queue empty? function

The empty? is an inbuilt function in Ruby checks if the queue is empty or not?. It returns a boolean value, which is true if the Queue is empty or it returns false.

Syntax: q_name.empty? Parameters: The function does not takes any element. Return Value: It returns true if the queue is empty else it returns false.

Example 1: Output:

false
true

Example 2: Output:

true

Reference: https://devdocs.io/ruby~2.5/queue#method-i-clear