Welcome!

My solution is using Jasmine for testing and Moment.js to handle dates.

The modern web is full of useful features to create basic applications. Common frameworks and libraries provide great structure (and should be used) for larger projects, but as a hobby, I like to explore the limits of the platform itself.

By better understanding the constraints modern tools work with behind the scenes, they are both easier to use — and improve.

Code on GitHub

See results in the developer console.