Typescript

I don't hate Typescript. I actually think the typing syntax is powerful and flexible, yet simple when you need it be. I just think of Typescript as a SIGNIFICANTLY easier way to write JSDoc annotations.

My issue is with the tooling.

TSC takes up so much memory and can get really slow. I feel like I have to constantly reload the typescript lsp because typings don't update or the LSP crashed.

Importing ESM modules in typescript doesn't require an extension which is non-standard.

For example:

import mod from './mod'

instead of

import mod from './mod.js'

Typescript with Node.js is a mess because of ESM and CommonJS. It's hard to tell if you're importing a CommonJS package or an ESM package because they're both done with an import in typescript. There are also some issues with writing types for packages that provide a CommonJS and ESM export. For example, this fastify issue.

Typescript has also made it a pain to see the source code of packages since you'll often get taken to a .d.ts file rather than the actual code, or you'll get taken to unreadable transpiled JS.

I don't how much of that is on library maintainers and how much is on typescript itself. I could just be totally missing something...