The close() is an inbuilt function in Ruby closes the SizedQueue permanently, and does not allows any more push or pop operations in it. A closed SizedQueue cannot be re-opened.
Syntax: sq_name.close()
Parameters: The function does not takes any element.
Return Value: It closes the SizedQueue and does not returns anything.
Example 1:
Ruby
#Ruby program for close() 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
#Closed the SizedQueue q1.close()
#check if closed or not puts q1.closed
?
|
Output:
5 true
Example 2:
Ruby
#Ruby program for close() function in SizedQueue #Create a new SizedQueue q1 q1 = SizedQueue. new ( 1 )
#push 12 q1.push( 12 )
#Closed the SizedQueue q1.close()
#check if closed or not puts q1.closed
?
|
Output:
true
Reference: https://devdocs.io/ruby~2.5/sizedqueue#method-i-close