Ruby | Queue << function
Last Updated :
07 Jan, 2020
The <<() is an inbuilt function in Ruby inserts the element in the queue.
Syntax: q_name << element
Parameters: The function takes the element to be inserted into the queue.
Return Value: It inserts the element into the queue.
Example 1:
#Ruby program for << function in Queue
#Create a new QUEUE q1
q1 = Queue. new
#push 5
q1
<< 5
#push 6
q1
<< 6
#Prints the element
puts q1.pop
puts q1.pop
|
Output:
5
6
Example 2:
#Ruby program for << function in Queue
#Create a new QUEUE q1
q1 = Queue. new
#push 10
q1
<< 10
#push 12
q1
<< 12
#Prints the element
puts q1.pop
#Again pushes 13
q1
<< 13
#Prints the element
puts q1.pop
#Prints the element
puts q1.pop
|
Output:
10
12
13
Reference: https://devdocs.io/ruby~2.5/queue#method-i-3C-3C
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