Solve 'Debug the functions EASY'

[odv]

https://www.codewars.com/kata/debug-the-functions-easy/train/javascript

[RazvanBugoi]

function multi(arguments) {
  return arguments.reduce( (num, current) => num * current);
}
function add(arguments) {
  return arguments.reduce( (num, current) => num + current, 0);
}
function reverse(arguments) {
    return arguments.split("").reverse().join("");
}