For + object = RangeError: Invalid array length

[milahu]

when i pass an object to <For>

<For each={someObject}>{(val, idx) => val}</For>

then solidjs throws the confusing error message RangeError: Invalid array length
which ideally should be something like TypeError: expected array

[ryansolid]

I see because it uses length to determine all behavior and an undefined sets it down a path where it tries to initialize a new array with the length undefined. Hmm.. I can probably add one more check that will no op it. But that's probably worse than no error. I kinda prefer not to isArray check it everytime unnecessarily. I suppose I could add that check in dev as a happy medium.