Yesterday, you were tweaking a simple jQuery accordion. Today, you look at
$ operator is gone. In its
place are lots of strange dots (
...) and strange symbols (
=>) (the spread operator
and arrow functions, as you’ll soon learn). Sure, some things look familiar,
such as class, but even that seems to be unpredictable (where are the private
Are you perplexed? Maybe a little excited? Well, I have good news for you: Everything has changed for the better.