Question

is there anyway to access the “name” of the parameter as such:

function(arg1, arg2) {
    debug("arg1 is rotten!");
}

Right now if i change the parameter name I’d have to change the name within the string as well, so I was looking if javascript had a solution like How do i bind function arguments to the parameters i supply in creating an ArgumentException object?

I want a way to be able to do something like:

function(arg1, arg2) {
        debug(arguments[0].name+" is rotten!");
    }

so that I would not have to search for the changes and change accordingly whenever i change the name of the parameter (sometimes its used more than once!)

Answer 1

You cannot access variable names, only their values. The closest you can get is if your argument to your method is an ‘options’ style object (which is just a regular JavaScript object, but calling it ‘options’ or ‘opts’ and having that contain all your arguments is a very common practice):

function test(opts){
    for(var name in opts){
        console.log(name + ' with value ' + opts[name] + ' is rotten!')
    }
}

test({arg1: 'argument 1', arg2: 'argument 2'});