How do I copy an array in JavaScript?

How do I copy an array in JavaScript?

You can copy an array in JavaScript using methods like slice(), spread operator, or Array.from(). Which method would you like to know more about?

Can you explain the spread operator for copying arrays?

Sure! The spread operator (...) allows you to create a shallow copy of an array. For example, if you have let arr = [1, 2, 3];, you can copy it using let copy = [...arr];.

What about using the slice method?

The slice method can also create a shallow copy. You can use it like this: let copy = arr.slice();. It copies the entire array.

Are there any differences between these methods?

Yes, while all methods create shallow copies, the spread operator and slice are more concise, while Array.from() is useful for converting array-like objects.