Ruby | SizedQueue << function

The <<() is an inbuilt function in Ruby inserts the element in the SizedQueue. The SizedQueue have a particular capacity and cannot accept elements once it is full.

Syntax: sq_name << element

Parameters: The function takes the element to be inserted into the SizedQueue.

Return Value: It inserts the element into the SizedQueue.

Example 1:

#Ruby program for << function in SizedQueue

#Create a new SizedQUEUE q1
q1 = SizedQueue.new(2)

#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 SizedQueue

#Create a new SizedQUEUE q1
q1 = SizedQueue.new(3)

#push 15
         q1
     << 15

#push 16
     q1
     << 16

#push 17
     q1
     << 17

#Prints the element
        puts q1.pop
            puts q1.pop
                puts q1.pop

Output:

15
16
17

Reference: https://devdocs.io/ruby~2.5/sizedqueue#method-i-3C-3C