Neel Sheth on Instagram: "Everyone learns JavaScript syntax… But very few understand what actually happens INSIDE the browser 😳 And that’s where real developers are made. When you run JavaScript… It’s not magic. Behind the scenes: ⚡ JS Engine (V8) reads your code ⚡ Call Stack executes line by line ⚡ Heap stores memory ⚡ Web APIs handle async tasks ⚡ Event Loop manages everything All this happens in milliseconds. That’s why: 👉 some apps feel fast 👉 some freeze 👉 some crash 👉 some lag Because