What is the performance of a deque in JavaScript?

What is the performance of a deque in JavaScript?

A deque, or double-ended queue, allows insertion and deletion from both ends. Its performance in JavaScript is generally O(1) for these operations when implemented using an array or linked list.

How does it compare to a regular array?

While arrays provide O(1) access time, they have O(n) for insertions and deletions at the beginning. Deques maintain O(1) for both ends.

Are there any libraries that implement deques in JavaScript?

Yes, libraries like 'collections.js' and 'deque' provide efficient implementations of deques in JavaScript.

What are some use cases for using a deque?

Deques are useful in scenarios like implementing queues, managing tasks in order, or for algorithms that require backtracking.