Create a JavaScript Datastore class

[louwie17]

Create a JavaScript Datastore class which will save data to localStorage.

Helpfull links: https://www.w3schools.com/js/js_classes.asp, https://www.w3schools.com/jsref/prop_win_localstorage.asp

• Create the class with several helper methods for saving the data and retrieving the data.
• We should be able to give the class a custom key that is used for saving in localStorage.
• export a instantiated productDataStore that we can use in our React components

To allow for easy testing you could set the class to the global window object, this is accessible in your browser console.

Bonus:

• Create the same class as above, but using a function instead, you can see how you might wan to do that under option 1 in this article -> https://www.phpied.com/3-ways-to-define-a-javascript-class/