Deep cloning objects in React has always been a tightrope walk between performance and correctness. If you use JSON.parse(JSON.stringify(obj)), you lose dates, maps, sets, and circular references. If you use third-party libraries, you risk bloating your bundle. And if you clone on every single render, you shatter React's reference stability, triggering infinite render loops.
In the latest release of react-hook-lab, we are addressing these problems directly with the addition of the highly optimized deepClone utility and its companion React hook, useDeepClone.
Here is a technical deep dive into how these additions work, how they are optimized, and how you can use them today.
Why useDeepClone?
The useDeepClone hook solves two problems at once:
