Awesomplete

https://leaverou.github.io/awesomplete/

Awesomplete is an ultra lightweight, customizable, simple autocomplete widget with zero dependencies, built with modern standards for modern browsers.

Options

JS Property	HTML Attribute	Description	Value	Default
list	data-list	Where to find the list of suggestions.	Array of strings, HTML element, CSS selector (no groups, i.e. no commas), String containing a comma-separated list of items	N/A
minChars	data-minchars	Minimum characters the user has to type before the autocomplete popup shows up.	Number	2
maxItems	data-maxitems	Maximum number of suggestions to display.	Number	10
autoFirst	data-autofirst	Should the first element be automatically	Boolean	false
listLabel	data-listlabel	Denotes a label to be used as aria-label on the generated autocomplete list.	String	Results List