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by smt88 2803 days ago
You're wrong.

Once you transpile the TS, you have standardized ECMAScript. Want to stop using TS? No problem. Just delete your TS files and work from your JS files.

And, beyond that, TS is intended to be a superset -- never incompatible, just "extra".

Finally, you can use TypeScript the same way Flow is used, through comments.

Tying yourself to TS isn't really something you can do, and there's zero risk in using it. You can always throw it out later.
2 comments
h1d 2803 days ago
> No problem. Just delete your TS files and work from your JS files.

This is quite an irresponsible comment.

The JS code generated isn't really meant for editing especially if you used a feature that isn't present on the runtime (like async/await in browser), not to mention all the formatting is rearranged.

If you're willing to go back to JS, you want to keep the original source.

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smt88 2803 days ago
"Irresponsible" is a bit of an overstatement, don't you think? The TS team explicitly says their goal is to generate readable JS, unlike (for example) Clojure or Scala.

Also, the async/await thing isn't an issue if you target the latest ECMAScript version. That's the only really ugly thing, and it's been easily avoidable for over a year.

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h1d 2803 days ago
Readable JS doesn't mean, convert back to the file in the format you used to for editing.

That comment could make people throw away the original and end up with machine generated code when going back.

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smt88 2803 days ago
Have you read transpiled TS before? It's sometimes almost identical to the source. It's as close as you can get to just removing the static typing. Variables have the same names, for example.

I used to have a problem where I'd be debugging the JS instead of TS file because visually, they were almost identical.

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mattmanser 2803 days ago
Have you seen the code the TS compiler spits out?

You do not want to work on that. It readable to an extent, but it's definitely not pleasant.

I don't think you could just go back.

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smt88 2803 days ago
If you're referring to generator-style async/await, you can change that now.

Otherwise you can just prettify it and be on your way.

Sure you don't want to go back, but that's the whole reason TS exists: writing JS with good organization and discipline is impossible at worst, full of boilerplate at best.

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