They say to "write a variable named $skillset. Set $skillset equal to a jQuery selector for the skillset class." So let's break that down step by step.
We'll start with a variable called $skillset:
var $skillset = ???
Next, they say to "Set $skillset equal to a jQuery selector for the
skillset class." I can see how that would be vague and confusing in english but it's fairly straight forward in practice and the answer is actually in their "learn" section, just a tad out of context.
What we are doing is setting the $skillset variable to the HTML Element on the page so that we can do stuff with it like show or hide it, etc.
So what's the
In css it would be
.skillset is just css until you send it to
$() which does jQuery magic for you.
So our result for step 1 is simply:
var $skillset = $('.skillset');
$skillset = <div class='skillset'> which is the wrapper around most things visible on the page.
Hope that helps.