Today I jumped in with Callbacks and how they handle asynchronous operations (setTimeout, API calls, Fetch), react to events and run code after something finishes. ⭐Here's what clicked: 1) Basic ...

The browser provides extra help. When you use a timer, JavaScript hands that task to the browser. The browser handles the wait. Once the timer ends, the browser tells JavaScript to run the callback.

Most rules target JavaScript and TypeScript, but some also lint CSS, HTML, JSON, and Markdown when used with the matching ESLint language plugin.