Question

In jQuery, what does the following do?

   $("#ivid1").bind("pageshow", function (e) { 

        // Do something.
    });

In particular, what is bind, pageshow and function(e)?

Answer 1

It binds a custom event pageshow to an element with id #ivid1 and defining a handler (function (e) {.. } )for that event.

Later you can trigger this event like below,

$("#ivid1").trigger('pageshow')

Note: As Halcyon and Josh Davenport (see comments) pointed out, it depends on the context and where it is being used.