What are rest parameters in JavaScript?

What are rest parameters in JavaScript?

Rest parameters allow a function to accept an indefinite number of arguments as an array, using the syntax '...args'.

Can you give me an example of how to use rest parameters?

Sure! Here's an example:

function sum(...numbers) {
    return numbers.reduce((acc, curr) => acc + curr, 0);
}
console.log(sum(1, 2, 3, 4)); // Output: 10

What is the difference between rest parameters and arguments object?

The 'arguments' object is an array-like object available within functions, while rest parameters are actual arrays and provide better readability and usability.

Are there any limitations to using rest parameters?

Yes, rest parameters must be the last parameter in a function definition, and you can only have one rest parameter.