How do I shallow copy an array in JavaScript?

How do I shallow copy an array in JavaScript?

You can use the spread operator or the Array.prototype.slice() method to create a shallow copy of an array.

Can you show me an example using the spread operator?

Sure! Here's an example: const originalArray = [1, 2, 3]; const shallowCopy = [...originalArray]; Now shallowCopy is a shallow copy of originalArray.

What about using the slice method?

Using the slice method is simple too! You can do it like this: const shallowCopy = originalArray.slice(); This will also create a shallow copy.

Are there any caveats I should be aware of?

Yes, remember that a shallow copy only copies the references of nested objects. If you modify a nested object, it will affect both arrays.