Thanks for the review and yes I'll definitely checkout the Prettier.. To be honest, I am not a front-end developer and I hardly catch up the latest frontend frameworks. I use `mocha` and `chai` to unit tests the core JS classes and use `webpack` to pack the ES6 to something Chrome understands e.g. Chrome extension does not understand `require`. Yes, you are right with Length>5 - which is obviously a code smell and I'll fix that later.