Is it possible to reflect the arguments of a Javascript function?

Question

Is it possible to get all of the arguments a Javascript function is written to accept? (I know that all Javascript function arguments are \"optional\")? If

Answer 1

HBP's answer is what most people are looking for, but if you're the one defining the function, you can also assign a property to the function object. For example,

a.arguments = ['foo', 'bar', 'baz']
function a(foo, bar, baz) {
  // do stuff
}

This is debatably more clear, but you'll have to write your arguments twice.