What does the '#' sign mean in JavaScript?

Question

I\'m new to Javascript and I\'m try to understand some code. I don\'t understand and I can\'t find any documentation about the # sign.

$(function ()         


        

Answer 1

In JavaScript? Nothing special. It is just part of a string.

The $ function might do something with it, but it is hard to tell what the $ function is.

There are a lot of libraries which provide a $ function that acts as a kitchen sink for that library. They include Prototype, Mootools and jQuery. This one looks most like jQuery, in which case the argument is a string containing a CSS selector, so the # indicates the start of an id selector.

This "Selects a single element with the given id attribute".