What is the difference between rest parameters and arguments in JavaScript?

Can you explain the difference between rest parameters and arguments in JavaScript?

Sure! In JavaScript, 'arguments' is an array-like object that contains all the arguments passed to a function, while 'rest parameters' allow you to represent an indefinite number of arguments as an array.

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

Of course! Here's an example:

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

In this case, '...numbers' collects all arguments into an array.

What about the 'arguments' object? How is it used?

The 'arguments' object is available within all non-arrow functions. For example:

function showArgs() {
    console.log(arguments);
}
showArgs(1, 2, 3); // Output: [1, 2, 3]

However, it's not an actual array, so you can't use array methods directly on it.

Are there any limitations to using the 'arguments' object?

Yes, the 'arguments' object does not work with arrow functions, and it doesn't have array methods. It's generally recommended to use rest parameters for better readability and functionality.