Discussion on: The Most Efficient Ways to Clone objects in JavaScript

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Native deep cloning is available in the browser. You just have to hack your way to it. The below pseudo-code gives the general idea... It might work but was just typed out here so maybe has typos ? 🤷‍♂️ (You can also use window.postMessage if you're on an ancient browser without MessageChannel support)


function clone(toClone) {
  return new Promise((yay, nay) => {
    const { port1, port2 } = new MessageChannel();

    port1.onmessage = ({ data }) => yay(data);
    port2.postMessage(toClone);
  });
}

clone({a:1}).then(a => console.log(a));