JavaScript autocomplete without external library

Question

Is there a javascript autocomplete library that does not depend on any other libraries?

I am not using jQuery or the likes as I am making a mobile app that I need to

Answer 1

For anyone looking at this in 2017 onwards who needs a simple solution, you can use HTML5's built-in tag instead of relying on JavaScript.

Example:

Note that this won't work in Safari (as of April 2017).

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/datalist