Find longest occurrence of same number in array

Question

Using JavaScript, I\'m trying to find a way to find the longest occurrence of the same number (in this case, 1) in an array.

For instance, here\'s a sample array:

Answer 1

You could take Array#reduce and return the start index of the actual same item sequence. Then check and update the counter if the item is not equal.

var array = [2, 5, 3, 1, 1, 1, 3, 7, 9, 6, 4, 1, 1, 1, 1, 1, 4, 7, 2, 3, 1, 1, 4, 3],
    maxCount = 0,
    maxValues;

array.reduce(function (j, a, i, aa) {
    if (aa[j] === a) {
        return j;
    }
    if (i - j === maxCount){
        maxValues.push(aa[j]);
    }            
    if (i - j > maxCount) {
        maxCount = i - j;
        maxValues = [aa[j]];
    }
    return i;
}, -1);

console.log(maxCount);
console.log(maxValues);