"Any word" filter for YUI Autocomplete

anyword.js

/*
 * Use the following in the "resultFilters" option when creating a YUI 3 Autocomplete
 * widget. This will return matches when *any* of the words in the query string match.
 * This is opposed to the default "wordMatch", which matches *all* words in the
 * query string. 
 */

function matchAnyWord(query, results) {

    var WordBreak = Y.Text.WorkBreak,        
        options = { ignoreCase: 1 },
        queryWords = WordBreak.getUniqueWords(query, options);

    return Y.Array.filter(results, function (result) {
        // Convert resultWords array to a hash for fast lookup.
        var resultWords = Y.Array.hash(WordBreak.getUniqueWords(result.text,
                            options));

        return Y.Array.some(queryWords, function (word) {
            return Y.Object.owns(resultWords, word);
        });
    });
}