Ruby | SizedQueue empty? function
The empty? is an inbuilt function in Ruby checks if the SizedQueue is empty or not?. It returns a boolean value, which is true if the SizedQueue is empty or it returns false. Empty here means if it contains elements or not in it.
Syntax: sq_name.empty?
Parameters: The function does not takes any element.
Return Value: It returns true if the SizedQueue is empty else it returns false.
Example 1:
#Ruby program for empty ? function in SizedQueue
#Create a new SizedQueue q1
sq1 = SizedQueue. new (2)
#push 5
sq1.push(5)
#push 6
sq1.push(6)
#Checks if the SizedQueue is empty or not
puts sq1.empty
?
#Clears the SizedQueue
sq1.clear()
#Checks if the SizedQueue is empty or not
puts q1.empty
?
|
Output:
false
true
Example 2:
#Ruby program for empty ? function in SizedQueue
#Create a new SizedQueue q1
sq1 = SizedQueue. new
#Checks if the SizedQueue is empty or not
puts sq1.empty
?
|
Output:
true
Reference: https://devdocs.io/ruby~2.5/sizedqueue#method-i-empty-3F
Last Updated :
09 Jan, 2020
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