An excellent piece of js software that I'd love to see explained is Mozilla's pfd.js. It is by far the most stable piece of js software that I have ever used.

An excellent piece of js software that I'd love to see explained is Mozilla's pfd.js. It is by far the most stable piece of js software that I have ever used. Tinkering is playing around with knowledge to make something cool, engineering is the art of making it reliable and durable. Most of what I see on the web is tinkering, pdf.js feels like it was made by engineers, instead of by tinkerers.