No More Struggling With Deep Cloning in JavaScript!!

For years, JavaScript developers have wrestled with the seemingly simple task of deep cloning an object. It should’ve been easy—right? But instead, we found ourselves performing hacky workarounds, relying on bulky utility libraries, or writing messy recursive functions. In 2025, those days are finally behind us.

Meet your new hero: structuredClone.

The Struggle We All Remember

The struggle is one just about every JavaScript developer remembers. Head buried in a tangle of nested objects, trying to keep track of what’s getting copied and what’s getting mutated trying to maintain our immutable state object, it never felt great. Further, JSON.stringify and JSON.parse feel like a quick-and-dirty workaround to something that should be built into the language.

Then came that familiar sinking feeling when a supposedly “cloned” object quietly dropped its Date values, lost methods, or outright broke on circular references. Lodash’s _.cloneDeep() stepped in as a helpful ally for a while, but it brought its own baggage in the form of extra dependencies, larger bundles, and a solution that still didn’t feel truly elegant or built-in. All of this effort, just to copy an object safely, always felt like patching over a problem the platform itself should have solved long ago.

Enter structuredClone — The Native Superpower

Then came structuredClone, quietly landing in modern browsers and Node.js. No third-party libraries. No manual recursion. No brittle hacks. Just one beautiful, powerful native function:

const clone = structuredClone(originalObject);

That’s it. Seriously. It works on plain objects, arrays, Maps, Sets, Blobs, Errors, and even circular references. It handles edge cases automatically—something JSON methods could never dream of.

Suddenly, deep cloning became boring in the best way possible.

The Future Is Clean and Cloned

If you’re managing complex state in React or Redux, moving data between threads with Workers, or logging rich state snapshots—structuredClone is your new best friend. It’s native, powerful, and genuinely liberating.

Don’t let this hero hide in the shadows any longer. Put structuredClone front and center, and let JavaScript cloning finally feel simple again.