15. Most Frequent Word

function findMostFreqWord(value) {
    value = value.toLowerCase();
    var allWords = value.match(/\w+/gi);
    var words = {};

    for (var i = 0; i < allWords.length; i += 1) {
        if (allWords[i] in words) {
            words[allWords[i]] += 1;
        }

        else {
            words[allWords[i]] = 1;
        }
    }

    var keysSorted = Object.keys(words).
                     sort(function(a,b){
                        var compare = words[b]-words[a]
                        return compare !== 0 ? compare : b < a});

    var max = words[keysSorted[0]];
    var sequence = 1;

    for(i = 1; i < keysSorted.length; i += 1) {
        if(max === words[keysSorted[i]]) {
            sequence += 1;
        }
        else {
            break;
        }
    }

    for(i = 0; i < sequence; i++) {
        console.log(keysSorted[i] + ' -> ' + words[keysSorted[i]] + ' times');
    }
}


findMostFreqWord('in the middle of the night');
findMostFreqWord('Welcome to SoftUni. Welcome to Java. Welcome everyone.');
findMostFreqWord('Hello my friend, hello my darling. Come on, come here. Welcome, welcome darling.');