A simple snippet for iterating arguments

itetate_arguments.js

var eachArg = function(args, fn, start_from, end_where) {
	var i = start_from || 0;
	while (i < args.length) {
		if (end_where !== undefined && i === end_where)
			return i;
		if (fn !== undefined)
			fn(i, args[i]);
		i++;
	}
	return i;
};