What is the difference between Object.assign and the spread operator?

Can you explain the difference between Object.assign and the spread operator in JavaScript?

Sure! Both Object.assign and the spread operator are used to copy properties from one object to another, but they have some differences.

What are the main differences in how they handle nested objects?

Object.assign performs a shallow copy, meaning it only copies properties at the first level. The spread operator does the same.

So, if I modify a nested object, will it affect the original object?

Yes, if you modify a nested object after using either method, it will affect the original object since both methods create shallow copies.

Are there any performance differences between the two?

Generally, the performance difference is negligible for most use cases, but Object.assign may be slightly faster in some scenarios.