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Ruby | Queue size() function

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The size() is an inbuilt function in Ruby returns the current size of the Queue or the number of objects present in it.

Syntax: q_name.size()

Parameters: The function does not takes any parameter.

Return Value: It returns the number of elements in the queue.

Example 1:




#Ruby program for size() function in Queue
  
#Create a new QUEUE q1
q1 = Queue.new
  
#pushes 5
     q1.enq(5)
  
#pushes 6
         q1.enq(6)
  
#Prints the size
             puts q1.size
  
#Pops the element
                 q1.pop
  
#Prints the size
                     puts q1.size


Output:

2
1

Example 2:




#Ruby program for size() function in Queue
  
#Create a new QUEUE q1
q1 = Queue.new
  
#Prints the size
     puts q1.size
  
#pushes 5
         q1.enq(5)
  
#pushes 6
             q1.enq(6)
  
#pushes 7
                 q1.enq(7)
  
#Prints the size
                     puts q1.size
  
#Pops the element
                         q1.pop
  
#Prints the size
                             puts q1.size


Output:

0
3
2

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



Last Updated : 07 Jan, 2020
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