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

Array remove

Use Array.filter() to find array elements that return truthy values and Array.reduce() to remove elements using Array.splice(). The func is invoked with three arguments (value, index, array).

const remove = (arr, func) =>
  Array.isArray(arr) ? 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]