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Ruby | SizedQueue clear() function
  • Last Updated : 09 Jan, 2020

The clear() is an inbuilt function in Ruby clears the SizedQueue. We can re-insert objects again to it till the declared size of the SizedQueue.

Syntax: q_name.clear()

Parameters: The function does not takes any element.

Return Value: It clears the SizedQueue and does not returns anything.

Example 1:






#Ruby program for clear() function in SizedQueue
  
#Create a new SizedQueue q1
q1 = SizedQueue.new(2)
  
#push 5
         q1.push(5)
  
#push 6
             q1.push(6)
  
#Prints the element
                 puts q1.pop
  
#Clears the SizedQueue
                     q1.clear()
  
#Prints the size
                         puts q1.length

Output:

5
0

Example 2:




#Ruby program for clear() function in SizedQueue
  
#Create a new SizedQueue q1
q1 = SizedQueue.new(2)
  
#push 5
         q1.push(12)
  
#Closed the SizedQueue
             q1.clear()
  
#check if closed or not
                 puts q1.size

Output:

0

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




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