Re: [WebDNA] Dynamic server feedback?
This WebDNA talk-list message is from 2009
It keeps the original formatting.
numero = 103787
interpreted = N
texte = Kenneth Grome wrote: > Can someone explain to me how swoopo.com displays new data continuously from the server like it does when it counts down different auction prices and displays them in red when there's only 10 seconds left in the auction (before someone places a bid and the clock for that auction is reset again)? > > I'm sure javascript handles the browser side, but how can I get a webdna thread to be the source of such data? Do I have to run a never ending loop or something ... so that the connection is continuous and new data is transmitted to the browser as it changes on the server? > > Sincerely, > Ken Grome No loop, that's the javascript (AJAX). Combining Ajax and WebDNA has some really cool possibilities. I've been trying to learn it in my spare time. You can reverse engineer what they are doing there... then you'd build the WebDNA that finds/retrieves the content you want. http://www.swoopo.com/prototype.js initializes the object.. http://www.swoopo.com/basic.js?t=8 (amongst other) does some of the details. I posted this a while ago: http://forum.webdna.us/eucabb.html?page=detail&threadid=287&category=252&start=1#287 which is code that initializes the xmlHttpRequest Object. However, if you are just starting out, there really is no short cut to knowing what you are doing other than taking a class or reading some books. Donovan -- Donovan Brooke WebDNA Software Corporation http://www.webdna.us **[Square Bracket Utopia]**
Associated Messages, from the most recent to the oldest:
Kenneth Grome wrote: > Can someone explain to me how swoopo.com displays new data continuously from the server like it does when it counts down different auction prices and displays them in red when there's only 10 seconds left in the auction (before someone places a bid and the clock for that auction is reset again)? > > I'm sure javascript handles the browser side, but how can I get a webdna thread to be the source of such data? Do I have to run a never ending loop or something ... so that the connection is continuous and new data is transmitted to the browser as it changes on the server? > > Sincerely, > Ken Grome No loop, that's the javascript (AJAX). Combining Ajax and WebDNA has some really cool possibilities. I've been trying to learn it in my spare time. You can reverse engineer what they are doing there... then you'd build the WebDNA that finds/retrieves the content you want. http://www.swoopo.com/prototype.js initializes the object.. http://www.swoopo.com/basic.js?t=8 (amongst other) does some of the details. I posted this a while ago: http://forum.webdna.us/eucabb.html?page=detail&threadid=287&category=252&start=1#287 which is code that initializes the xmlHttpRequest Object. However, if you are just starting out, there really is no short cut to knowing what you are doing other than taking a class or reading some books. Donovan -- Donovan Brooke WebDNA Software Corporation http://www.webdna.us **[Square Bracket Utopia]**
Donovan Brooke
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