If I should rate an event from the front end I thing I should consider the UX. In this field JsDay has 10/10 as UX: location is easy to reach (once you are in Verona), food are good (missing salt from meat, they are salutist), very clean and comfortable, you get what you want and need, coffee breaks spans during the day in a regular basis, free bottled water (very valuable thing) and kindly hotel’s and organization’s staff.
Then what follow was my path.
Danni Friedland spoke about NSA.js. MutationObserver is an interesting API that let you observe what happens to the DOM. Its application has some limitation, but it is very interesting, and astonishing demo!
Henry Bergius present Flow based programming, an interesting way to define a program as a process, shown by a series of block passing message: message passing is the main concept of object oriented design, thus .. why not? http://flowhub.io/
Marco Cedaro spoke about the spirit of test, somewhat philosophical presentation, sameway funny, but there are books and and videos, etc. all around the world that pray you to convert to the spirit of TDD … ok, maybe it has to be repeated.
My path to the launch time was: risotto con salciccia, meat, green beans, bread, an apple at the end (even if I am not a fun, I have to admit it could be sweat sometime). Coffee (thanks you, I will give back some day)
Federico Galassi presents the world of asynchronous programming. I discovered stream programming: define observable to observe events, not only asynchronous served function, and manage it a la promises way (Ex. SetInterval managed with a promise style).
Jakob Mattsson present Z-Core, a way to write test on asynchronous call in a readable way. It is a library, must test run it!
.. to be continued