Lab - AutoComplete

/* Everybody hates typing text and since you've already adopted the lazy mindset of a programmer,
 it's time you made your life easier! Your task is to write a JavaScript program that takes a text of words
 (space-separated) and a given keyword, and then autocompletes that keyword with a suitable match
 from the provided text. The matched word should follow the rules:
 It should contain the keyword from start – e.g. "wolf" matches "wo", but not "olf".
 If there are multiple matches, the shortest word should be returned. If two words are equally long,
 the lexicographically lesser word should be returned.
 Word match should be case insensitive. */

"use strict";

function autoCompleteWord(args) {
    var words = args[0].split(/\s+/g).filter(Boolean);

    for (var i = 1; i < args.length; i += 1) {
        var keyword = args[i].toLowerCase();
        var foundWords = [];
        for (var j = 0; j < words.length; j += 1) {
            var currentWord = words[j];
            if (currentWord.toLowerCase().indexOf(keyword) == 0) {
                foundWords.push(currentWord);
            }
        }

        if (foundWords.length == 0) {
            foundWords.push('-');
        }

        foundWords.sort(function(a, b) {
            if (a.length != b.length) {
                return a.length - b.length;
            }
            return a.localeCompare(b);
        });

        console.log(foundWords[0]);
    }
}

autoCompleteWord([
    'word screammm screech speech wolf',
    'bas',
    'wo',
    'scr',
    's'
]);

autoCompleteWord([
    'firefox mozilla gecko webKit lord battery skype',
    'firf',
    'fire',
    'momo',
    'skyp',
    'lord',
    'webk'
]);