Most Frequent Number

function findMostFrequent(arr) {
    var frequency = 1;
    var bestFrequency = 1;
    var element;

    for (var i = 0; i < arr.length; i++) {
        frequency = 1;
        for (var j = 0; j < arr.length; j++) {
            if (arr[i] === arr[j]) {
                frequency++;
                if (frequency > bestFrequency) {
                    bestFrequency = frequency;
                    element = arr[i];
                }
            }
        }
    }
    return element + " " + frequency;
}

console.log(findMostFrequent([1, 2, 1, 4, 6, 1, 2, 4]));