export default function isDiffMaps(clone, value) { if (clone === value) { return false; } if (clone.size !== value.size) { return true; } for (const [key, aValue] of clone) { const bValue = value.get(key); // Distinguish missing vs undefined and catch strict inequality if (bValue !== aValue || (bValue === undefined && !value.has(key))) { return true; } } return false; }