Browser APIs & Web Features

If you’ve ever used fetch() Postman, but never truly understood what happens behind the scenes, this is for you. Introduction: You Call APIs Every Day, But Do You Really Know How They Work? Every day, millions of developers send and receive data using APIs. A simple line of code like this feels second nature: const data = await…

Make your web app smarter and more contextual by detecting, tracking, and using a user’s location, all with plain JavaScript. Introduction Ever noticed how some websites automatically show local weather, nearby stores, or your current city?That’s not magic, it’s the Geolocation API quietly doing the work behind the scenes. This simple but powerful browser API…

Learn how to build a live map that follows user movement in real time using only JavaScript and the browser’s built-in Geolocation API. Introduction You’ve seen it before, apps like Google Maps, Uber, and Strava that track your location and show it updating live. But here’s something most developers don’t realize:You can build your own…

Learn how to track and update real-time user location in JavaScript with simple, working examples. Introduction Real-time location tracking isn’t just for delivery apps or ride-sharing platforms anymore; it’s everywhere. From fitness dashboards to “find my friend” maps, live tracking helps users see motion as it happens. The good news? You don’t need any external…

Learn how to detect, track, and use a user’s location in your JavaScript apps, no libraries or external APIs needed. Introduction From ride-tracking apps to weather dashboards, location-aware web apps are everywhere. They feel smarter, more personal, and more useful because they respond to where the user is. What many developers don’t realize is that you can…

Learn how to access and update a user’s live location in your web app, no libraries, just built-in browser power. Introduction Have you ever used a ride-hailing app that updates your position in real time or a map that follows your movement as you walk?That magic happens thanks to the Geolocation API, a native browser feature…

Add tactile feedback to your web app using the Vibration API, a tiny feature that makes a big difference. Introduction There’s something magical about feeling your app respond to you. A soft buzz when a task completes. A subtle vibration when a message fails. Those little touches make apps feel alive, polished, and “native.” What most…

Add haptic feedback and micro-interactions to your web apps using just a few lines of JavaScript. Introduction Most developers know how to make a website look good, but how about making it feel good? That’s where the Vibration API comes in. It’s one of those small, underrated browser features that lets your web app trigger…

Learn how to give your users tactile feedback with a single JavaScript call, no frameworks, no native SDKs. Introduction Mobile users expect to feel as well as function.Native apps do this effortlessly: a soft buzz when you send a message, a subtle vibration when something fails. But what if your web app could do the same?…