The $ dollar sign

Question

I have something simple like this:

$(selector).append("somestuff");

But since I\'m going to reuse the selector I cache it with:

Answer 1

$ is just a name - names in JavaScript can contain dollar signs, and can consist of just a dollar sign.

Whether you use a dollar sign in your name isn't relevant to jQuery - there's nothing special about the dollar sign, except that jQuery defines a function called $.