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25. Metaprogramming with Proxy and Reflect

Intercepting and customizing object operations.

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A `Proxy` wraps a target object and intercepts fundamental operations using trap handlers like `get`, `set`, and `has`. The companion `Reflect` API provides default forwarding behavior.

js
const handler = {
  get(target, prop) {
    return prop in target ? target[prop] : "default";
  }
};
const p = new Proxy({}, handler);

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  1. 1. What does a Proxy allow you to do in JavaScript?

  2. 2. Why is the Reflect API paired with Proxy traps?

  3. 3. Which trap intercepts property reading?

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