How does the Event Loop work in JavaScript?

This article by Lydia Hallie delves into the event loop in JavaScript, a crucial concept for understanding asynchronous processing in the language. Specifically, it outlines how JavaScript handles asynchronous operations and the concurrency model it employs. The event loop is a mechanism that allows JavaScript to run code, collect and process events, and execute functions in response to these events. The author uses visualizations to help readers grasp these complicated concepts in a simple manner. These visualizations display how different components, such as the call stack, event queue, and web APIs, interact to ensure smooth operation of web applications. Understanding the event loop is essential for anyone looking to program effectively in JavaScript, as a misunderstanding of this mechanism can lead to unexpected performance issues and application behavior.