ts-node

I thought this was going to be a project like ts-node [1] [1] https://github.com/TypeStrong/ts-node

ts-node is responsible for my favourite error message in all of computing. Yes better than: 'Error: success' or 'keyboard not found: press F1 to continue' > ts-node: Unknown file extension: ts. Someone will reply for a technical reason about this (mentioning .mts or package.json settings or whatever) but that doesn't change the fact that a program whose only job is to run ts files should know what a ts file is. GitHub issue: https://github.com/TypeStrong/ts-node/issues/1967 tsx or @digitak/esrun both work out of the box.

I’m guessing what’s documented here: https://www.typescriptlang.org/docs/handbook/jsdoc-supported... I’ve never written TypeScript myself so just a guess. There’s also this for node.js: https://github.com/TypeStrong/ts-node

It does support ESM, with a --loader[1], but even with its SWC option it’s still significantly slower than the esbuild loader I’m working on. Unfortunately, esbuild isn’t totally compatible with tsc, so it’s not a drop-in replacement without plugins. 1: https://github.com/TypeStrong/ts-node#native-ecmascript-modu...

It's being adopted in ts-node as well: https://github.com/TypeStrong/ts-node/blob/main/website/docs...

If you are working on the server side, ts-node has been a huge timesaver. It removes the extra step of compiling and lets you just run your script with `ts-node script.ts` or even `#!/usr/bin/env ts-node` at the top of your file works. https://github.com/TypeStrong/ts-node

> there's no really good simple way to say "Node: compile and execute this typescript file, please don't save the output on disk anywhere, or try to read tsconfig.json or package.json or whatever". I guess there's no native typescript support for nodejs (so npx is out). Maybe deno can help? https://deno.land/ > Supports TypeScript out of the box. Thats clearly a sort of "now you have two problems" type solution - but if there's a desire to stick with ts as a language - it might be helpful? (to drop the python dependency). Ed: hm, there's apparently ts-node : https://github.com/TypeStrong/ts-node npx ts-node script.ts https://stackoverflow.com/a/33536053

For anyone working on Nodejs targeted TypeScript I would highly recommend checking out ts-node. I use it a ton when I want to not worry about the pre-compilation step for various reasons. Can work with absolute imports, and caches code on the first run as well. Pretty sweet. https://github.com/TypeStrong/ts-node Article mentions ts-jest; can also recommend. I use Jest for all my TS projects from serverless to selenium. Its watch mode is fantastic. I also typically use ts-loader with Webpack instead of Babel. Eh, might as well toss a few more recommendations in there: * source-map-support * Bluebird for long stack traces with async/await(v8 now has a zero-cost feature behind a flag now though as of end of 2018) * Get the debugger hooked up to your browser/nodejs process for a great debug experience

> I have written tests in TypeScript, compiled to JavaScript, and then used Mocha, for example, to run tests. I would like to hear your thoughts on this. We use ts-node to run our mocha tests without ever compiling: https://github.com/TypeStrong/ts-node