This is a step by step guide on how to use the accessible autocomplete component in the GOV.UK prototype kit. There aren’t any instructions included with the code for using with the prototype kit, and it’s not straightforward if you’re not familiar with javascript.
I have an example repo you can download to check the code.
Download the accessible autocomplete code, you can download the zip or clone the repo if you prefer to use git.
Copy the minified files from the /dist folder to your prototype.