16aug22filterTwoArr.js

Your goal in this kata is to implement a difference function, which subtracts one list from another and returns the result.

It should remove all values from list a, which are present in list b keeping their order.

arrayDiff([1,2],[1]) == [2]

If a value is present in b, all of its occurrences must be removed from the other:

arrayDiff([1,2,2,2,3],[2]) == [1,3]


function arrayDiff(a, b) {
    //   return a.filter(item => !b.includes(item))
      return a.filter(item => !b.includes(item))
    }