Am I the only one believing common js was super ok and don't like esm? Or put differently I didn't see the necessity of having esm at all in Node. Let alone the browser, imagine loading tons of modules over the wire instead of bundle them
Am I the only one believing common js was super ok and don't like esm? Or put differently I didn't see the necessity of having esm at all in Node. Let alone the browser, imagine loading tons of modules over the wire instead of bundle them
The fact that ESM exports are static - and imports are mostly static - allows for a lot more dead code removal during bundling. That alone is a big win IMHO.
You can still bundle them, maybe you even should. Webpack still does a good job. Can also remove unused parts.
If anything bun proves that both worlds can go together despite what proponents of web standards says
> If anything bun proves that both worlds can go together despite what proponents of web standards says
Sure, but Bun's implementation is a confusing mess a lot of times. I prefer them separate.
Note: This is no shade toward Bun. I'm a fan of Bun and the innovative spirit of the team behind it.
Yes.
Also CommonJS does not support tree shaking.
Nor does ESM if you import * as. Plus I believe it can be made to support tree shaking
Edit: the proof my point reside in the many libraries which have an open issue because, even if ESM, they don't support tree shaking
`import * as` is still treeshakeable and Browsers will do it in-memory as the imports form weak proxies.
Bundlers can treeshake it, it is just harder to do, and so it hasn't always been a priority feature. esbuild especially in the last few years has done a lot of work to treeshake `import * as` in many more scenarios than before. Sure it isn't treeshaking "all" scenarios yet, but it's still getting better.