What are the performance implications of array cloning in JavaScript?

What are the performance implications of array cloning in JavaScript?

Array cloning can impact performance based on the method used. For instance, using slice() or the spread operator is generally efficient for shallow copies, but deep cloning can be costly.

What methods are available for cloning arrays?

Common methods include slice(), concat(), the spread operator ([...]), and Array.from(). For deep cloning, you might use JSON.parse(JSON.stringify(array)) or libraries like Lodash.

How does the size of the array affect cloning performance?

Larger arrays take more time to clone, especially with deep cloning methods. The time complexity can increase significantly with the size of the array.

Are there any best practices for array cloning?

Yes, prefer shallow cloning methods for performance unless deep cloning is necessary. Also, consider using libraries for complex structures.