Deep Clone an Object (No External Libraries) in JavaScript
#javascript #javascripttutorial #javascriptinterviewquestions
I am using visual studio code.
In this JavaScript coding challenge, you’ll learn how to *deep clone an object* — one of the most important skills in modern web development.
📌 Challenge Overview:
Write a function that creates a *deep copy* of a nested JavaScript object, including arrays and other objects inside it — without using external libraries like Lodash or structuredClone.
🧠 What You’ll Learn:
• Difference between shallow vs deep cloning
• Why `JSON.parse(JSON.stringify(obj))` fails in some cases
• How to handle nested objects and arrays recursively
• Avoiding reference issues when copying data in JavaScript
🧪 Example:
```js
const original = { a: 1, b: { c: 2 } };
const copy = deepClone(original);
console.log(copy); // { a: 1, b: { c: 2 } }
console.log(copy === original); // false
console.log(copy.b === original.b); // false
Chapters:
0:00 Deep Clone an Object
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