A very simple example showing how to force the Bootstrap typeahead (http://twitter.github.io/bootstrap/javascript.html#typeahead) to match only the start of words. The default matcher function matches the user query to any part of the possible results, which is often times undesirable - for example, in the standard typeahead in the example below, typing "Uni" gives four results that begin with "Uni", but also "Réunion" and "Tunisia".