Function minBy`Const`

minBy<T, TKey>(
selector: IndexedSelector<T, TKey>,
comparer?: Comparer<TKey>,
): (src: Iterable) => Iterable
Selects the elements whose key value is minimal according to the comparer.

Curried version of _minBy.
Type Parameters
- T
  Element type produced by the source iterable.
- TKey
  Key type produced by the selector and consumed by the comparer.
Parameters
- selector: IndexedSelector<T, TKey>
  Selector receiving each element and its index, producing the key used for comparison.
- comparer: Comparer<TKey> = defaultComparer
  Comparer determining ordering between keys; defaults to defaultComparer.
Returns (src: Iterable) => Iterable
An iterable containing every element sharing the minimal key, or an empty iterable when the source is empty.
Throws
Error Rethrows any error thrown by selector or comparer.
Example
```
const tasks = [
  { id: 1, duration: 12 },
  { id: 2, duration: 5 },
  { id: 3, duration: 5 },
];
const quickest = [..._minBy(tasks, (task) => task.duration)];
console.log(quickest);
// [ { id: 2, duration: 5 }, { id: 3, duration: 5 } ]
```
or using the curried version:
```
const quickest = [
  ...pipeInto(
    [
      { id: 1, duration: 12 },
      { id: 2, duration: 5 },
      { id: 3, duration: 5 },
    ],
    minBy((task) => task.duration)
  ),
];
console.log(quickest);
// [ { id: 2, duration: 5 }, { id: 3, duration: 5 } ]
```