Function toggleElementBy

toggleElementBy<T>(
    array: T[],
    element: T,
    predicate: DualPredicate<T>,
): undefined | T
If the given array contains an element matching the predicate it is removed, otherwise it is added to the end. For your convenience the given element value is also passed to the predicate as a second parameter, so you can easily compare the two if needed.
Type Parameters
- T
Parameters
- array: T[]
- element: T
- predicate: DualPredicate<T>
Returns undefined | T
the original element if removed, undefined if added
- Defined in src/array.ts:228