What are the differences between spread and rest parameters?

Can you explain the differences between spread and rest parameters in JavaScript?

Sure! Spread parameters allow you to expand an iterable (like an array) into individual elements, while rest parameters collect multiple elements into a single array.

Can you give me an example of each?

Of course! For spread, you can use it like this: const arr = [1, 2, 3]; console.log(...arr); This will log 1, 2, 3. For rest, you can define a function like this: function sum(...numbers) { return numbers.reduce((a, b) => a + b, 0); }.

Are there any limitations to using these parameters?

Yes, spread can only be used in specific contexts like function calls or array literals, while rest parameters must be the last parameter in a function definition.