Investigate tsx

[72636c]

It looks like this has a REPL, which was the historical reason to stick with ts-node.

https://github.com/esbuild-kit/tsx

[AaronMoat]

The REPL is quite a different experience to ts-node in pasting code in and stuff. Try pasting in a multiline function:

function x(a: { a: 1, b: 2 }): 2 {
    return a.b;
}

$ npx ts-node
> function x(a: { a: 1, b: 2 }): 2 {
...     return a.b;
... }
undefined
>
$ npx tsx
Welcome to Node.js v18.13.0.
Type ".help" for more information.
> function x(a: { a: 1, b: 2 }): 2 {
    return a.b;
}function x(a: { a: 1, b: 2 }): 2 {
            ^

Uncaught SyntaxError: Unexpected token ':'
> var __getOwnPropNames=Object.getOwnPropertyNames;var __commonJS=(cb,mod)=>function __require(){return mod||(0,cb[__getOwnPropNames(cb)[0]])((mod={exports:{}}).exports,mod),mod.exports};var require_REPL2=__commonJS({"REPL2.js"(){return a.b}});export default require_REPL2();
                                                                                                                                                                                                                                                  ^^^^^^

Uncaught SyntaxError: Unexpected token 'export'
> }

edit: privatenumber/tsx#250

[72636c]

🥲

[samchungy]

Would you normally paste in a command?

I would think the normal usecase would be running a file

[AaronMoat]

running a file

In that case tsx would be fine as there's no REPL involved, right?

I guess the question here is whether the REPL is actually used?

[samchungy]

Oh true I should read the issue better