What are some examples of the rest operator in JavaScript?

Can you explain the rest operator in JavaScript with some examples?

Sure! The rest operator allows you to represent an indefinite number of arguments as an array. For example, in a function definition, you can use it like this: function myFunction(...args) { console.log(args); }.

Can you give me a practical example of how to use it?

Absolutely! Here's a practical example: function sum(...numbers) { return numbers.reduce((acc, num) => acc + num, 0); }. This function takes any number of arguments and returns their sum.

What about using the rest operator in array destructuring?

Great question! You can use the rest operator in array destructuring like this: const [first, ...rest] = [1, 2, 3, 4]; Here, first will be 1, and rest will be [2, 3, 4].

Are there any limitations to using the rest operator?

Yes, the rest operator must be the last parameter in a function definition, and you can only use it once per function.