json import fails

[vinothvk]

Hello

Does vitest support import of json out of the box ?
My source code that imports a JSON file throws below error when i run vitest

TypeError: Unknown file extension ".json"

Thanks

[Rvtea]

I workaround this via pass the --experimental-json-modules to the command via something like "test": "NODE_OPTIONS='--experimental-json-modules' vitest run"

[sheremet-va]

Importing json should work in you source code, but will fail without the experimental-json-modules option, like mentioned above. You can also use deps.inline option in Vitest config to allow Vitest process dependency files.

[Rvtea]

thx for the suggestion, I do try deps.inline however it does not work for my case, so I use the workaround as current solution.
Some more context for my use case: struggled with dayjs and it output with one locale.json, vitest compile the files and turns out with the json import issue. I tried add deps.inline with ['dayjs'], but it do not work. Do I use it wrong?

[sheremet-va]

Try deps.inline: [/dayjs/]

[vinothvk]

Thanks @Rvtea @sheremet-va both solutions work for me

[Rvtea]

@sheremet-va
sorry I forgot to mention that I also tried deps.inline: [/dayjs/] and also not works. My config is like this:

test: {
  deps: {
    inline: [/dayjs/]
  }
}