### 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). ```js 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] ```