This question explores JavaScript and addresses practical considerations related to: How do I properly clone an object in JavaScript without affecting the original?

To clone an object in JavaScript without affecting the original, you can use the `Object.assign` method or the spread operator for shallow copies, or `structuredClone` for deep copies. // Shallow copy using spread operator const original = { a: 1, b: 2 }; const shallowClone = { ...original }; // Deep copy using structuredClone const deepOriginal = { a: 1, b: { c: 2 } }; const deepClone = structuredClone(deepOriginal); ADDITIONAL COMMENT: - Shallow copies only duplicate the first level of the object. Nested objects will still reference the same memory location. - Deep copies create a completely independent copy, including nested objects. - `structuredClone` is a modern and safe way to perform deep copies in JavaScript. - Ensure your environment supports `structuredClone`, as it is a relatively new addition. ✅

How do I properly clone an object in JavaScript without affecting the original?

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How do I properly clone an object in JavaScript without affecting the original?

Asked on Feb 07, 2026

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To clone an object in JavaScript without affecting the original, you can use the `Object.assign` method or the spread operator for shallow copies, or `structuredClone` for deep copies.

// Shallow copy using spread operator
        const original = { a: 1, b: 2 };
        const shallowClone = { ...original };

        // Deep copy using structuredClone
        const deepOriginal = { a: 1, b: { c: 2 } };
        const deepClone = structuredClone(deepOriginal);

Additional Comment:

Shallow copies only duplicate the first level of the object. Nested objects will still reference the same memory location.
Deep copies create a completely independent copy, including nested objects.
`structuredClone` is a modern and safe way to perform deep copies in JavaScript.
Ensure your environment supports `structuredClone`, as it is a relatively new addition.

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How do I properly clone an object in JavaScript without affecting the original?

Asked on Feb 07, 2026

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