What are the best practices for cloning arrays in JavaScript?

What are the best practices for cloning arrays in JavaScript?

Cloning arrays in JavaScript can be done in several ways. The best practices include using the spread operator, Array.from(), and the slice method. Each method has its own use cases depending on whether you need a shallow or deep clone.

Can you explain the difference between shallow and deep cloning?

Sure! Shallow cloning creates a new array but does not create copies of nested objects; it only copies references. Deep cloning, on the other hand, creates a completely independent copy of the array and all nested objects.

When should I use deep cloning?

You should use deep cloning when you have nested objects in your array and you want to ensure that changes to the cloned array do not affect the original array.

What methods can I use for deep cloning?

For deep cloning, you can use JSON methods like JSON.parse(JSON.stringify(array)), or libraries like Lodash which provide a cloneDeep function.