# Queues

A Queue<T> hands values back in the order they arrived, first in, first out. Enqueue adds to the back of the line, Dequeue takes from the front, and Peek looks without taking.

![Cheat sheet: Queues](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/b9dec59199cd44a7adefb58f9cc08881.webp)

- Category: C#
- Level: Journeyman
- Tags: c-sharp, Queue<T>
- Updated: November 3, 2026

Source: https://www.ask-codey.com/cheat-sheets/advanced-collections-in-csharp-queues-cheat-sheet