()

It looks like you accidentally passed resolve() (immediately invoking the function) directly to setTimeout rather than passing a function to invoke it. So it was being resolved immediately instead of after a 1000 ms delay as intended.

here I wrapped the function call in an IIFE - that's what that (async () => {....})() is if you've never seen it. This is simply because we need to wrap the await call in a function that uses the async keyword, and we also want to "immediately invoke" the function (IIFE = "Immediately Invoked Function Execution") in order to call it.

$: (async() => filtered = await getItems())();