6kyu-find-the-parity-outlier.js

// You are given an array (which will have a length of at least 3, but could be very large) containing integers. The array is either entirely comprised of odd integers or entirely comprised of even integers except for a single integer N. Write a method that takes the array as an argument and returns this "outlier" N.
// Examples

// [2, 4, 0, 100, 4, 11, 2602, 36]
// Should return: 11 (the only odd number)

// [160, 3, 1719, 19, 11, 13, -21]
// Should return: 160 (the only even number)

function findOutlier(integers) {
        const filtered = integers.filter(value => value % 2 === 0);
        if (filtered.length === 1) {
                return filtered[0];
        }
        return integers.filter(value => value % 2 !== 0)[0];
}