Ruby | SizedQueue empty? function

Ruby | SizedQueue empty? function

Last Updated : 09 Jan, 2020

The empty? is an inbuilt function in Ruby checks if the SizedQueue is empty or not?. It returns a boolean value, which is true if the SizedQueue is empty or it returns false. Empty here means if it contains elements or not in it.

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

Example 1:

CPP

#Ruby program for empty ? function in SizedQueue

#Create a new SizedQueue q1
sq1 = SizedQueue.new(2)

#push 5
          sq1.push(5)

#push 6
              sq1.push(6)

#Checks if the SizedQueue is empty or not
                  puts sq1.empty
    ?

#Clears the SizedQueue
    sq1.clear()

#Checks if the SizedQueue is empty or not
        puts q1.empty
    ?

Output:

false
true

Example 2:

CPP

#Ruby program for empty ? function in SizedQueue

#Create a new SizedQueue q1
sq1 = SizedQueue.new

#Checks if the SizedQueue is empty or not
      puts sq1.empty
    ?

Output:

true

Reference: https://devdocs.io/ruby~2.5/sizedqueue#method-i-empty-3F

Ruby | SizedQueue empty? function

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