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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
/** * Applies the given transformer to all entries in the given record and returns * a new record containing the results. * * @example * ```ts * import { mapEntries } from "https://deno.land/std@$STD_VERSION/collections/map_entries.ts"; * import { assertEquals } from "https://deno.land/std@$STD_VERSION/testing/asserts.ts"; * * const usersById = { *   "a2e": { name: "Kim", age: 22 }, *   "dfe": { name: "Anna", age: 31 }, *   "34b": { name: "Tim", age: 58 }, * } as const; * const agesByNames = mapEntries(usersById, ([id, { name, age }]) => [name, age]); * * assertEquals( *   agesByNames, *   { *     "Kim": 22, *     "Anna": 31, *     "Tim": 58, *   }, * ); * ``` */export function mapEntries<T, O>(  record: Readonly<Record<string, T>>,  transformer: (entry: [string, T]) => [string, O],): Record<string, O> {  const ret: Record<string, O> = {};  const entries = Object.entries(record);
  for (const entry of entries) {    const [mappedKey, mappedValue] = transformer(entry);
    ret[mappedKey] = mappedValue;  }
  return ret;}