breaking: Change the fetcher argument to be consistent with the passed key #1864
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Currently
useSWR([1, 2, 3], fetcher)
will use the fetcher signaturefetcher(a, b, c) => data
. With this PR it changes tofetcher([a, b, c]) => data
, which makes the argument consistent, and unblocks other features we want to add in the future.This also simplifies the type definitions and inference a lot.
Planned as a breaking change in 2.0.