This respository is a collection of plugins for jQuery that generally make things better.

Replaces jQuery UI Autocomplete's default behavior of matching each item in an array sequentially with a trie. This makes queries super-quick, especially on really large sources. There's a demo with a 100,000 entry source that can be autocompleted in a second. The same demo pretty much freezes the default autocomplete. This plugin makes it impossible to autocomplete things that aren't prefixes (e.g. it can't autocomplete "qu" to "jQuery").