Array Unique Sum

const numbers = [1, 4, 5, 1, 2, 10, 12, 15, 11, 13, 11, 5];

const oddSum = numbers.filter(elem => elem % 2 !== 0).filter((v, i, a) => a.indexOf(v) === i).reduce((a, b) => a + b);

console.log(oddSum)