Javascript-Webdesign

Define the following 2 functions in JSBin:

- A function which receives an array of numbers as an argument, and returns the product of all the numbers in that array. For example, multiply([2,3,4]) should return 24. - A function which receives a string as an argument, and returns the reversal of that string. For example, reverse('Hello there!') should return "!ereht olleH"