Queue

Queue

erase

Removes all elements from queue.
Precondition : it requires the name of the queue.
Example : queue erase fruits

create

It creates a new queue.
Precondition : it requires the name of the queue
Example : queue create fruits
Note : The created queue will be in the global scope. Under the hood it is an array.

dequeue

Removes the next element from the queue.
Precondition : it requires the name of the queue.
Example : queue dequeue fruits

destroy

It destroys the queue.
Precondition : it requires the name of the queue.
Example : queue destroy fruits

enqueue

It put an element to queue.
Precondition : it requires the name of the queue and the element.
Example : queue enqueue fruits apple

empty

Returns whether the queue is empty.
Precondition : it requires the name of the queue.
Example : queue empty fruits

peek

Returns the next element from the queue.
Precondition : it requires the name of the queue.
Example : queue peek fruits

size

Returns the number of elements in the queue.
Precondition : it requires the name of the queue.
Example : queue size fruits