I assumed it was going to be about compilation as the subject is TypeScript, which feels like a safe assumption. I suppose there could actually be runtime consequences of TypeScript too, as you’re still writing runtime code, just through a game of telephone with TypeScript :p
> I suppose there could actually be runtime consequences of TypeScript too, as you’re still writing runtime code, just through a game of telephone with TypeScript :p
Right. One of the first things you learn while doing TypeScript is that interfaces don't exist after compile time. So in general, it's better to write interfaces and use plain-old-objects than to use `class`, which generates real JavaScript code.
Within reason, of course. Classes are still useful. But it's not necessarily the first thing to reach for.
