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Tim Fish
@timfish.dev

is it up to implementers if the raw data is loaded at import evaluation or whether it's loaded lazily when the bytes are actually read?

Steven ⬢
@styfle.dev

This proposal doesn’t mention exactly when bytes are read. It would work similar to import type json or really any other import. If it’s a synchronous import, the bytes need to be available when executing that line.

Tim Fish
@timfish.dev

I was thinking of node.js where the full static import tree is evaluated before any code executes. So if you don't use dynamic imports it will potentially impact app startup performance?

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Steven ⬢
@styfle.dev

Yes but remember that importing bytes is going to be a leaf in this tree because its can't import more modules. If you really care about startup performance, I believe CJS is still faster than ESM. But that doesn't matter if you bundle before running which is why import bytes can be bundled too.