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