file.exists() should return a bool instead of always truthy [bool]

[grayside]

As illustrated in the code comment, checking if a file exists can be done along these lines:

client.bucket(BUCKET).file(FILE).exists()

That's fantastically useful. However, the response from this method is not a bool as anyone looking at the function name would assume. Instead, it returns a bool wrapped in an array. This means the response always evaluates truthy.

Developers paying attention will realize something is wrong. Developers that do not test for missing files will ship broken code.

[callmehiphop]

Hi @grayside! Sorry you ran into this, it is a known quirk across all of our Node.js libraries. I don't think there is any planned work to change the method signatures, so I would suggest destructuring in the mean time.

const [exists] = await file.exists();

Hopefully this is not too big of an inconvenience.