| // @flow strict | |
| import objectEntries from '../polyfills/objectEntries'; | |
| import { type ObjMap } from './ObjMap'; | |
| /** | |
| * Creates an object map with the same keys as `map` and values generated by | |
| * running each value of `map` thru `fn`. | |
| */ | |
| export default function mapValue<T, V>( | |
| map: ObjMap<T>, | |
| fn: (value: T, key: string) => V, | |
| ): ObjMap<V> { | |
| const result = Object.create(null); | |
| for (const [key, value] of objectEntries(map)) { | |
| result[key] = fn(value, key); | |
| } | |
| return result; | |
| } |