Autocomplete Fuzzy Matching

fuzzy.js

// http://dustindiaz.com/autocomplete-fuzzy-matching

var people = ['Daniel', 'Dustin', 'David', 'Damarcus', 'Russ'];

function matchPeople(input) {
  var reg = new RegExp(input.split('').join('\\w*').replace(/\W/, ""), 'i');
  return people.filter(function(person) {
    if (person.match(reg)) {
      return person;
    }
  });
}

"el", "us" not return anything