Re: Newbie AJAX Question

Wednesday, December 21, 2011

Thanks for replying Joseph.

Well actually my JSON data is to be populated at the server-side using
PHP/mySQL, so the code at line 11 would read

var url = 'http://myurl.com/products.php?var1=1&var2=2';

This all appears to be working fine, although I haven't tried it cross-
domain just yet. (Will it?)

My only question is whether there are any inefficiencies with this
method or if there is a better way..?


On 21 Dec, 01:09, Joseph Choi <jsk.c...@gmail.com> wrote:
> technically, yes it's ajax, since you're loading additional
> data asynchronously via javascript.
>
> xmlhttprequest enables you to send requests, typically to a web-service,
> through the internet via javascript.
>
> the example you've included is loading additional data via a json file
> (effective a text file?), which is fine.  but if that's the case, why not
> just load your product data directly onto the page?
>
>
>
>
>
>
>
> On Tue, Dec 20, 2011 at 7:15 AM, wije <jensw...@gmail.com> wrote:
>
> > I fairly new to JS and I need to do some AJAX injections, both JSON-
> > data and some html/css/javascript local-domain.
>
> > I can manage this using jQuery || Zepto but as I am developing for
> > mobile I'd love to avoid using plugins alltogether and do a light-
> > weight pure javascript version.
>
> > I cobbled the code below together for the JSONP and it works nicely,
> > but my newbie question is:
>
> > Is this even AJAX? What is the difference between what I've done here
> > and say an XMLHttpRequest? Any issues with this method?
>
> > Thanx
>
> > // script insertion function
> > function testJSONP() {
>
> > //remove old instance of script reference
> > if (old =  document.getElementById('jsonp_ref')) {
> > old.parentNode.removeChild(old);
> > }
>
> > //fetch new data
> > var url = 'products.json';
> > var script = document.createElement('script');
> > script.setAttribute('src', url);
> > script.setAttribute('id', 'jsonp_ref');
>
> > // inject data into DOM
> > document.getElementsByTagName('head')[0].appendChild(script);
> > }
>
> > // this is the funciton that the jsonp-file calls
> > function jsonpdata(data) {
>
> >        //do something with the data
> >   for (var i in data.products) {
> >                console.log(i);
> >        }
> > }
>
> > <button onclick="testJSONP();">getJSON</button>
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "JavaScript Forum" group.
> > To post to this group, send email to
> > javascript-information@googlegroups.com.
> > To unsubscribe from this group, send email to
> > javascript-information+unsubscribe@googlegroups.com.
> > For more options, visit this group at
> >http://groups.google.com/group/javascript-information?hl=en.

--
You received this message because you are subscribed to the Google Groups "JavaScript Forum" group.
To post to this group, send email to javascript-information@googlegroups.com.
To unsubscribe from this group, send email to javascript-information+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/javascript-information?hl=en.

0 comments:

Post a Comment

Note: Only a member of this blog may post a comment.

Copyright © 2010 Web Design | Free Blogger Templates by Splashy Templates | Layout by Atomic Website Templates

Vida de bombeiro Recipes Informatica Humor Jokes Mensagens Curiosity Saude Video Games Animals Diario das Mensagens Eletronica Rei Jesus News Noticias da TV Artesanato Esportes Noticias Atuais Games Pets Career Religion Recreation Business Education Autos Academics Style Television Programming Motosport Humor News The Games Home Downs World News Internet Design Entertaimment Celebrities 1001 Games Doctor Pets Net Downs World Enter Jesus Mensagensr Android Rub Letras Dialogue cosmetics Genexus lasofia thebushrajr wingshock tripedes gorduravegetal dainfamia dejavu-transpersonal jsbenfica republicadasbadanas ruiherbon iranianforaryans eaystcheyl fotosdanadir Só Humor Curiosity Gifs Medical Female American Health Madeira Designer PPS Divertidas Estate Travel Estate Writing Computer Matilde Ocultos Matilde futebolcomnoticias girassol lettheworldturn topdigitalnet Bem amado enjohnny produceideas foodasticos cronicasdoimaginario downloadsdegraca compactandoletras newcuriosidades blogdoarmario arrozinhoii