Use ESModules instead of module.exports

[jehon]

Today, debug use module.exports facility.
But nodejs and browser can support import / export notation, aka es6 modules.
While preparing the v5, why not going into that mode?
#656 ?

[Qix-]

It's not supported natively, so a build step would be required. Unfortunately, package management for the different types of modules still is pretty terrible. This is why most large modules are still CJS exported.

[jehon]

You are right...

Conditional exports be a solution when not experimental anymore, or for next major:

// package.json
{
"main": "./main-require.cjs",
"exports": {
"import": "./main-module.js",
"require": "./main-require.cjs"
},
"type": "module"
}

https://nodejs.org/dist/latest-v15.x/docs/api/packages.html#packages_conditional_exports

Storing it here to not loosing this...

[tverilytt]

Any news on this topic?

[tverilytt]

In Node.js ESM this works for me:

import debugModule from 'debug';
const debug = new debugModule('foo');

[Qix-]

Yep, v5 will be pure ESM.

[jimmywarting]

It would be cool to see debug being a ESM only package, It would put pressure on many packages towards upgrading their commonjs packages to ESM as well and benefit the hole js ecosystem in the end.
otherwise they can still use a older version of debug

[mrmckeb]

Hi @Qix-, we've been working on ESM support for ms, and it would be great to get your feedback if you have some time:
vercel/ms#163

This work is also published as 3.0.0-beta.2.

[milahu]

Yep, v5 will be pure ESM.

choose:

1. merge the working patch by @Konakona-chan today
2. make your users wait forever for your "perfect" esm rewrite (i hope it can fly me to the moon, too)

just another personality test, i guess ...

[Qix-]

@milahu I refuse to take such rude and unconstructive feedback on my repositories. I owe you nothing, sir.

Have some respect for people who do this out of their free time, and perhaps consider that there are other factors that affect the frequency of updates to a package that gets downloaded billions of times a month.

[milahu]

then publish as debug-esm, problem solved.

[Qix-]

Not really, no. Please take your negativity elsewhere.