Function mapNotNullish

mapNotNullish<T, O>(array, transformer): NonNullable<O>[]
Returns a new array, containing all elements in the given array transformed using the given transformer, except the ones that were transformed to null or undefined.
Type Parameters
- T
  The type of the elements in the input array.
- O
  The type of the elements in the output array.
Parameters
- array: Iterable<T, any, any>
  The array to map elements from.
- transformer: ((el: T) => O)
  The function to transform each element.
  - - (el): O
    - Parameters
      el: T
      Returns O
Returns NonNullable<O>[]
A new array with all elements transformed by the given transformer, except the ones that were transformed to null or undefined.
Example: Basic usage
```
import { mapNotNullish } from "@std/collections/map-not-nullish";
import { assertEquals } from "@std/assert";

const people = [
  { middleName: null },
  { middleName: "William" },
  { middleName: undefined },
  { middleName: "Martha" },
];
const foundMiddleNames = mapNotNullish(people, (people) => people.middleName);

assertEquals(foundMiddleNames, ["William", "Martha"]);
```
- Defined in collections/map_not_nullish.ts:34