What is the difference between the rest operator and the spread operator in JavaScript?

What is the difference between the rest operator and the spread operator in JavaScript?

The rest operator collects multiple elements into an array, while the spread operator expands an array into individual elements.

Can you give me an example of each?

Sure! For the rest operator: function myFunc(...args) { console.log(args); } collects arguments into an array. For the spread operator: const arr = [1, 2, 3]; const newArr = [...arr, 4, 5]; expands arr into individual elements.

Are there any specific use cases for each operator?

Yes! The rest operator is useful for functions that accept a variable number of arguments, while the spread operator is great for merging arrays or copying them.

Can I use them in the same function?

Absolutely! You can use both in the same function. For example: function example(...restArgs) { return [...restArgs, 4, 5]; }.