While IDE transforms can be handy when getting started with small projects, you cannot use them for automated builds (projects with multiple contributors, continuous integration). Any serious project using TS does indeed require a build step.
As much as I will fairly praise Visual Studio, thanks for pointing out this automatic generation feature
I'm not by nature keen on automatic behaviour, or files appearing wherever, and though I visited this story simply to check in on the state of a language I know less than I want about, I'm certain that I would want a proper build step even for tinkering, once I start in earnest. I've long been enthusiastic about TypeScript especially, but from a distance, unable to allocate time to take it seriously enough.
I think the state of js and environment is now at a point that, in my view at least, I should not begin the smallest project without a deep dive into the state of the language. I see things moving so fast, that - at least in my workplace where we've had teams stick together for years commonly (partnership!) - it would suck to find oneself misdirected by a aggressive assumption, or find oneself in a unloved cul - de - sac of dependencies.
Tl;dr js is IMO at a place where the pay off for deeply studying the state of the language, is substantial while risk of not deeply groking js are rising fast.
Personally, I think I shall better resort to getting a new shelf of good books, for my needs, but I do believe the risk reward is looking hairy for any casual users. (or hurried business management, in particular)
I'm a little surprised, given my understanding the impression I had of ts is the very broad aim is to reduce your error in code, (type safety only part of that) that VS will encourage casual / random deployments like this. I can't decide if it's a occasional convenience quite suited to weekend js ciders like me, or a omitted formality that I feel encourages poor or slack habits.
Funny thing is, I never once thought of firing up VS to write JavaScript before now. I have no need, but I'm just displaying my age when I note that visually my mind thinks of early Netscape view source spelunking and text editors, not a actual IDE and build system.
What keeps me, well into a fourth decade of programming, from using JavaScript I think is only the fact that I totally phase out at the state of the tool chain for js. My mind blanks. But there's so much to like, using js, that i hope it's not abandoned by time I get to really learning it. (forgive my humour, but my first real computing experience was on a Symbolics 3650, then spanking new. Last week wanting to show a friend what one looked like, I found kids veritably boarding them! (sorry for the kids part, but it's nuts I found such phrases creeping up on me, I'm lucky in looking less than my years, but when did I start saying things like "the kids are doing x"? I want to know what causes this, and if there's a cure!)