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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
/** * 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`. * * @example * ```ts * import { mapNotNullish } from "https://deno.land/std@$STD_VERSION/collections/map_not_nullish.ts"; * import { assertEquals } from "https://deno.land/std@$STD_VERSION/assert/assert_equals.ts"; * * const people = [ *   { middleName: null }, *   { middleName: "William" }, *   { middleName: undefined }, *   { middleName: "Martha" }, * ]; * const foundMiddleNames = mapNotNullish(people, (it) => it.middleName); * * assertEquals(foundMiddleNames, ["William", "Martha"]); * ``` */export function mapNotNullish<T, O>(  array: Iterable<T>,  transformer: (el: T) => O,): NonNullable<O>[] {  const ret: NonNullable<O>[] = [];
  for (const element of array) {    const transformedElement = transformer(element);
    if (transformedElement !== undefined && transformedElement !== null) {      ret.push(transformedElement as NonNullable<O>);    }  }
  return ret;}