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queque.js
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queque.js
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/**
* Queque.
* Factory for queque.
*/
export const Queque = () => {
const queque = {}
let rear = 0
let front = 0
/**
* isEmpty.
* Check if the queque is empty.
* @returns {Boolean}
*/
const isEmpty = () => rear - front <= 0
/**
* enqueque.
* Add element in the back.
* @param {} element
*/
const enqueque = (element) => {
queque[rear] = element
rear++
}
/**
* dequeque.
* Remove element from front.
* @returns {} removed element
*/
const dequeque = () => {
const element = queque[front]
delete queque[front]
front++
if (isEmpty()) {
front = 0
rear = 0
}
return element
}
return {
isEmpty,
enqueque,
dequeque
}
}