I would expect this to work, but for some reason I’m still getting error.

I can’t use Map with string key in Flow?

Using inline Flow on vanilla (no framework) JS, these two alternatives seem to be different:

I’m trying to write a function that creates an object with all the common attributes of a union type but as far as I can tell it is not possible without a FlowFixMe. Here’s an example

Working in a vanilla JS project (NOT the vanilla framework), it would be nice to be able to preload some JS files before analyzing the “main” file you want to check. Is this possible? Or do I have to write manual declare-files?