basant307/AI_Governance_Project

1function countBy(map, mapper) {2    const result = new Map();3    for (const [key, value] of map) {4        const mappedKey = mapper(value, key, map);5        result.set(mappedKey, (result.get(mappedKey) ?? 0) + 1);6    }7    return result;8}9 10export { countBy };11