All posts tagged ‘wiki’

File Under: Ajax

Ajax for Beginners

JavaScript has had the XMLHttpRequest object for almost a decade now, but it really only started getting wide attention in 2004. All this attention was mostly due to some showoff web applications that made every developer who saw them think, “I want my site to do that!” But it also has to do with the spiffy, spiffy name given to it by the folks at AdaptivePath, who named this asynchronized application Ajax. Maybe you’ve heard of it?

A few high-profile Google applications in particular made a splash with Ajax: Maps and Gmail were first. It also powers some of the core functionality in the user interface of the ever-so-popular photo sharing site Flickr. By now, Ajax has become integral to the fabric of the web, especially in the era of real-time applications like Twitter, Buzz and Wave (all of which use Ajax extensively in their webapp front ends, for the record). Ajax may also lay claim to being the first JavaScript object with its own fan website. Date.com doesn’t count, although I did have a scintillating chat with a lady there once about the getTimeZoneoffset method.

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File Under: Glossary

CPC

Cost per click (CPC) is a method of charging advertisers for the user clicks their advertisements have received.

Cost per click is the going method for charging for targeted advertising, such as search ads, while cost per impression (CPM) is largely associated to branding advertisements, such as banner ads. Cost per acquisition (CPA) charges only for users who have committed a transaction or conversion.

File Under: Glossary

Hover

Much like standing behind your co-worker while she slaves away, hover implies standing by but not doing anything. In dHTML, it refers specifically to when the user has positioned her cursor over a link but not yet clicked anything. The style will not change if the cursor is simply passed over the link, but you can set an action to take place after a predetermined amount of hovering.

File Under: HTML

Write Symbols and Special Characters in HTML

When you type regular letters, numbers, and characters from your keyboard into the body of an HTML document, they show up on your Web pages just as you typed them. But things aren’t so easy in non-English speaking countries (and such places do exist – honest). Languages such as French, German, and Icelandic often use characters that are not found on your typical keyboard. Even in English, accents can distinguish a “résumé” from a “resume.”

So how do you make special characters and accented letters show up on your pages? You use a special set of codes called character entities, which you insert into your HTML code and which your browser will display as the corresponding symbols or characters you want.

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File Under: Glossary

Python


Python is an interpreted, object-oriented programming language that runs on several operating systems, including Unix, Windows, OS/2 and Macintosh. The language is relatively easy to learn, and can be used for developing apps, or for more mundane tasks such as system administration, code generation and graphical user interfaces. Python was created by Guido van Rossum, whose favorite comedy group was, you guessed it, Monty Python’s Flying Circus. Python is copyrighted, but the source code is freely available and can be commercially re-sold.