Is it possible to express a "recursive" function like factorial without using recursion or iteration? The answer--often surprising--is yes. The technique involved--expressing recursive functions as fixed-points--leads to a more fundamental understanding of recursion.
Wow, there's a lovely world that needs to be explored
This document describes an interface for an abstract File I/O interface where web applications can interact with a file system, without any prior knowledge about the underlying filesystem. This interface can be used for e.g. an image preview before submitting a form or for saving a drawing from a canvas painting web application locally.
open the web
you want it to lock the user out when the browser hasn’t had focus after 15 minutes? Well that’s easy you think, I’ll just connect to the document’s blur and focus events and be good to go.
A week ago I wrote about tweeting from Opera’s address bar and presented a method for doing so without aid for external scripts or services such as a method given a couple of months ago. Since then my method has made its way across the interwebs even being posted on My Opera, but there’s a better way to do it.