Suggestion: function support for $memo

[shiro]

Hi, thanks for making this amazing library, it improved my code by a lot!
Just wanted to share a small annoyance I often come across:

$memo wraps its content in a callback, i.e.

$memo(33) -> createMemo(() => {return 33})

Which is great, but I also often need to do some computation, so I need a function to do it. If I put in a callback, it's going to get wrapped, which I'd argue is not a common use case.

$memo(() => 33) -> createMemo(() => () => {return 33}) (we don't want to wrap it here)

A hacky workaround:

$derefMemo(createMemo(() => {
  return 33;
}));

I would argue that 99% of the time, we want to return a value rather than a callback, so I suggest changing the behavior for function parameters.

For the remaining 1% it would also be ergonomic enough IMO:

$memo(() => () => 33) (the memo value should be () => 33 here)

I didn't check the $ helper yet, but since it combines memo and effect, it's probably also affected.
Would like to hear your opinion on this!

[lxsmnsyc]

You can declare the function to another variable and call it like $memo(myFunc())

But I'll think about adding support on this