# Event Loop

The Event Loop is one of the most important aspects to understand about Node.js. Why is this so important? Because it explains how Node.js can be asynchronous and have non-blocking I/O, it explains the "killer feature" of Node.js, which made it this successful.

Visit the following resources to learn more:

- [The Node.Js Event Loop](https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/#what-is-the-event-loop)
- [JavaScript Visualized: Event Loop](https://dev.to/lydiahallie/javascript-visualized-event-loop-3dif)
- [What the heck is the event loop anyway?](https://www.youtube.com/watch?v=8aGhZQkoFbQ)
- [In the loop: JS conf 2018](https://www.youtube.com/watch?v=cCOL7MC4Pl0)