Warning when running tsx on node 20.8.0

[doberkofler]

Problem

tsx --trace-warnings scripts/build.ts

(node:9241) ExperimentalWarning: --experimental-loader may be removed in the future; instead use register():
--import 'data:text/javascript,import { register } from "node:module"; import { pathToFileURL } from "node:url"; register("file%3A///Users/doberkofler/MyDev/ljs_app/trunk/desktop/ttr/web/node_modules/tsx/dist/loader.mjs", pathToFileURL("./"));'
at createModuleLoader (node:internal/modules/esm/loader:534:17)
at get esmLoader [as esmLoader] (node:internal/process/esm_loader:18:26)
at node:internal/modules/cjs/loader:118:47
at node:internal/util:796:15
at Module.load (node:internal/modules/cjs/loader:1094:26)
at Module._load (node:internal/modules/cjs/loader:938:12)
at Module.require (node:internal/modules/cjs/loader:1115:19)
at require (node:internal/modules/helpers:130:18)
at Object. (/Users/doberkofler/MyDev/ljs_app/trunk/desktop/ttr/web/node_modules/tsx/dist/preflight.cjs:1:20)
at Module._compile (node:internal/modules/cjs/loader:1241:14)

Expected behavior

No warning

Minimal reproduction URL

https://stackblitz.com/edit/node-huzszn?file=index.ts

Version

3.13.0

Node.js version

20.8.0

Package manager

npm

Operating system

macOS

Contributions

• I plan to open a pull request for this issue
• I plan to make a financial contribution to this project

[privatenumber]

Thanks for the report.

Found the warning source here:
https://github.com/nodejs/node/blob/952cf0d17ae51c644a434684dabf493ccf2ebf38/lib/internal/modules/esm/loader.js#L546

[privatenumber]

I briefly investigated this, and it looks like the warning is coming from the loader thread, so there's no good way to suppress it.

I think the best way forward is to actually update the API to use --import and register.