ryanflorence

function CopyButton({ value }) {
  let [copied, setCopied] = React.useState();
  let hydrated = usePageIsHydrated();
  React.useEffect(() => {
    let id = setTimeout(() => setCopied(false), 2000);
    return () => clearTimeout(id);
  }, [copied]);

  return (
    <button

gvergnaud

Promises, under the hood

You all know that to create a new Promise you need to define it this way:

  new Promise((resolve, reject) => {
    ...
    resolve(someValue)
  })

You are passing a callback that defines the specific behavior of your promise.