Modern JavaScript

It would be great to continue on from where we finished in December with the DunedinJS/migrating-to-modern-js (https://github.com/DunedinJS/migrating-to-modern-js) project. We'll introduce unit testing with Jest and convert to modern syntax.

This will still be at a suitable level for new-comers.

Let's leave the end of the workshop open.

It would be great if anybody has something to present.
An informal question and answer session on anything JavaScript related might also be useful for many.