javascript Разницамеждумассивами

Posted 2021-05-03

const arr1 = [1,2,3,4]
const arr2 = [1,2,3,4,5]

let difference = arr1
                 .filter(x => !arr2.includes(x))
                 .concat(arr2.filter(x => !arr1.includes(x)));
console.log(difference);