30-seconds-of-code/snippets/remove.md

Remove

Remove elements from arr that are returns truthy. Use Array.filter() to finding the matching elements and Array.reduce() to remove elements using Array.splice().The func is invoked with three arguments: (value, index, array).

const remove = (arr, func) =>
    arr.filter(func).reduce((acc, val) => {
        arr.splice(arr.indexOf(val), 1)
        return acc.concat(val);
    }, [])
//remove([1, 2, 3, 4], n => n % 2 == 0) -> [2, 4]