min_value()

Return the minimum value in the array, based on an optional key function. Returns None if the array is empty.

Implementation

Args: array: The array to search. key_func: Optional function to determine the comparison key. Returns: The minimum value or None if the array is empty.

Example

min_value([3, 1, 2])

Expected output: 1

Alternative usage:

min_value([{'a': 3}, {'a': 1}], key_func=lambda x: x['a'])

Expected output: {'a': 1}

Source Code

                        def min_value(
    array: List[T], key_func: Optional[Callable[[T], Any]] = None
) -> Optional[T]:

    if not array:
        return None
    if key_func:
        return builtins.min(array, key=key_func)
    return builtins.min(array)  # type: ignore
                    