Sep 23, 2008 · If you know the structure of the objects you are trying to clone or can avoid deep nested arrays you can write a simple for (var i in obj) loop to clone your object while checking …

Jun 15, 2024 · By understanding these different methods for deep cloning nested objects and arrays in JavaScript, you can ensure your code works as intended and avoid unintended modifications to the …

Jul 23, 2025 · Deep clone in JavaScript refers to creating a complete copy of an object, including all nested objects, ensuring that changes to the cloned object do not affect the original. Unlike shallow …

Learn to deep clone complex JavaScript objects using the built-in structuredClone () method. Handle nested data and special types with this modern, efficient approach

Nov 4, 2025 · When dealing with arrays containing nested arrays or objects, a simple shallow copy is insufficient for true independence. In such cases, a deep clone is necessary. The most common and …

Dec 29, 2024 · Below are the most efficient methods to achieve deep cloning, with their pros and cons. 1. Using JSON.parse() and JSON.stringify() This method converts an object into a JSON string and …

Nov 3, 2025 · The most modern and reliable solution is using the structuredClone() method, which creates true deep copies of objects. This method handles nested objects, arrays, and most data …

Mar 10, 2025 · Shallow Cloning: A shallow copy means that original objects and cloned objects share references to nested properties. Changes you make to nested objects within a shallow-cloned object …

Nov 8, 2025 · This blog explores the top deep cloning methods in JavaScript, analyzing their pros, cons, edge cases, and efficiency to help you decide which is best for your project.

Jan 18, 2023 · Did you know, there's now a native way in JavaScript to do deep copies of objects? That's right, this structuredClone function is built into the JavaScript runtime: