accessibility

Wish I had time to write a pr and perhaps I'll get a chance later but for now:
Adding the combobox role then a few aria tags the following link has an example
https://www.w3.org/TR/wai-aria/roles#combobox

Also as an aside I know 200 is a small timeout and the chances are probably low of it not firing before the component unmounted but you should save a reference and clear the timeout on componentWillUnmount.

I ended up making my own. Mostly because I needed more control over styling and text-masking but having your example made it go way faster. Thanks for having this up.

Read the linked WAI-ARIA combobox guidance, then inspect the repository's datalist component and its timeout lifecycle. Done means the component exposes the requested combobox semantics and ARIA attributes, and the timeout is safely handled when the component unmounts.

Written by the indexing model from the issue text.