Ruby | Queue size() function

Ruby | Queue length() function

Last Updated : 07 Jan, 2020

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

Syntax: q_name.length()

Parameters: The function does not takes any parameter.

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

Example 1:

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

Output:

2
1

Example 2:

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

Output:

0
3
2

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

Ruby | Queue size() function

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