Filter duplicated values from array

duplicated.js

const tmp = [1, 2, 3, 1, 3, 4, 5];

const uniqueFirst = Array.from(new Set(tmp));
const uniqueSecond = tmp.filter((item, index) => tmp.indexOf(item) === index);
const uniqueThird = tmp.reduce((unique, item) => unique.includes(item) ? unique : [...unique, item], []);

const duplicatedValues = tmp.filter((item, index) => tmp.indexOf(item) !== index);

console.log(uniqueFirst);
console.log(uniqueSecond);
console.log(uniqueThird);
console.log(duplicatedValues);