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What is queue.enq() in Ruby?

Harris Amjad

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

The queue.enq() function is used to insert the element at the back of the queue.

Figure 1 shows the visual representation of the queue.enq() function.

Figure 1: Visual representation of queue.enq() function

This function is equivalent to queue.push().

Syntax

queue_name.enq(element)
# where the queue_name is the name of the queue

Parameter

This function requires an element as a parameter.

Return Value

This function inserts the element sent as a parameter at the back of the queue.

Example

#Inserts elements in the queue
queue1=Queue.new
queue1.enq(1)
queue1.enq(3)
queue1.enq(5)
queue1.enq(2)
queue1.enq(0)
#queue1 = 1->3->5->2->0
print "The queue1 after series of enq : \n"
print queue1.deq(),"->",queue1.deq(),"->",queue1.deq(),"->",queue1.deq(),"->",queue1.deq()

RELATED TAGS

ruby
queue
communitycreator

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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