refactor: support SSR in Deno

[ije]

when use SSR with swr in Deno i got a warning:

Warning: useLayoutEffect does nothing on the server, because its effect cannot be encoded into the server renderer's output format. This will lead to a mismatch between the initial, non-hydrated UI and the intended UI. To avoid this, useLayoutEffect should only be used in components that render exclusively on the client. See https://reactjs.org/link/uselayouteffect-ssr for common fixes.

import useSWR from "https://esm.sh/swr"

export default function Home() {
    const { data } = useSWR('/api/hi', fetcher);

    if (!data) {
        return <div>loading...</div>
    }
    return <div>hello {data.name}!</div>
}

[shuding]

Looks amazing, thank you! Will test and merge later.

[ije]

FYI please check https://alephjs.org/docs/basic-features/import-from-npm

[huozhi]

is typeof Deno !== 'undefined' ok enough for determining deno environment?
I'm wondering if we can skip the !!Deno?.versions?.deno seems it's crashing the tests on CI

[ije]

for safety, better to check the Deno.version.deno, i just updated hope it can pass the tests