Day 2 – Discovering the Power of TypeScript

🚀 Day 2 of my 30 Days of Learning Challenge

Next day's focus was all about TypeScript, and it opened up a new way of thinking about code for me. I’ve always been comfortable with JavaScript, but this statically typed superset challenged me in a good way.

We started by covering the basics — type annotations for variables, function parameters, and return values. Then we moved into more advanced concepts like interfaces, type aliases, and optional vs required properties. It felt a little rigid at first, especially coming from JavaScript's flexibility, but the benefits quickly became clear.

I built a simple to-do app and used TypeScript to define the shape of each task, enforce valid input, and handle errors gracefully. By the end, my IDE was catching mistakes before I even ran the code — something JS never gave me. That sense of confidence and clarity was super motivating.

One thing that stuck with me: “TypeScript makes you design your data before writing the code.” That discipline made my logic cleaner and more reusable. It also made debugging easier because everything was more predictable.

I can already tell that TypeScript will be central to how I build both backend and frontend features going forward — and I’m actually excited about that.

💬 Question for Readers:
How has using TypeScript changed the way you think about writing JavaScript? Did it help you avoid bugs, or did the strict typing feel like a barrier at first?