Question

How to get the difference between two arrays in JavaScript

Answer 1

function difference(arr1, arr2) {
    return arr1.filter(n => !arr2.includes(n))
               .concat(arr2.filter(n => !arr1.includes(n)));
}

const arr1 = [1,2,3,4,5];
const arr2 = [1,3,4,5,6];

console.log(difference(arr1, arr2)); 





/*
run:

[2, 6]

*/
  

 

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