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
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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
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Output:
0
Reference: https://devdocs.io/ruby~2.5/sizedqueue#method-i-clear