Proxy: Made With Reflect 4 Top

Proxies are not free. Each operation goes through an indirection layer. Using Reflect adds minimal overhead compared to manual implementations, but for hot code paths (e.g., loops with millions of iterations), avoid proxies. However, for most application-level concerns (validation, logging, access control), the overhead is negligible.

// Only proceed with Reflect if validation passes return Reflect.set(target, prop, value, receiver); , deleteProperty(target, prop) if (prop === "id") throw new Error("Cannot delete 'id' property"); proxy made with reflect 4 top