Which answer is correct?

Use `JSON.parse(JSON.stringify(obj))`. It works for any object.

— codemaster42

Use `structuredClone(obj)`. It handles circular references, Dates, RegExps, Maps, Sets, and more. Available in all modern browsers and Node 17+.

— modernjs_fan

Use the spread operator: `const clone = {...obj}`. This copies all properties.

— quickfix_dev

Use `Object.assign({}, obj)`. This is the standard way to clone objects.

— es6_expert