Javascript function as a parameter to another function?

Question

I\'m learning lots of javascript these days, and one of the things I\'m not quite understanding is passing functions as parameters to other functions. I get the concept

Answer 1

Callbacks. Say you're doing something asynchronous, like an AJAX call.

doSomeAjaxCall(callbackFunc);

And in doSomeAjaxCall(), you store the callback to a variable, like var ajaxCallback Then when the server returns its result, you can call the callback function to process the result:

ajaxCallback();