TypeScript: type vs interface — What Actually Matters

If you’ve worked in a TypeScript codebase for a while, you’ve probably seen interface and type used interchangeably. Most of the time, it works. But there are a few cases where the difference actually matters — and can lead to confusing behavior, harder-to-extend code, or unexpected errors. In this video, I break down: – The real difference between interface and type – When they behave differently – When it actually matters in real projects – A simple rule you can follow going forward This isn’t about syntax. It’s about understanding how TypeScript actually behaves so your code stays predictable as it grows. #typescript #javascript #webdevelopment #frontend #programming