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Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com (10 unread)

September 01, 2010
10:31
Creating Base64-Encoded Data URLs For Images In ColdFusion
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Typically, when we want to include an image in a web page, we use an IMG tag with a SRC value that points to a file located on the server (ex. my_image.jpg). Modern browsers, however, allow us to embed images directly in the page markup as Base64-encoded "data urls." For caching and performance reasons, you generally wouldn't want to use data urls to define your images; however, in some cases, it's tremendously useful to serialize and reference an image without needing an additional HTTP requ ... Read More »
August 31, 2010
10:56
Using jQuery's Proxy() Method In Event Binding And Unbinding
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Yesterday, I explored the use of jQuery's native event management in the creation of object-oriented publication and subscription (pub/sub) functionality . In order to do this, I had to make use of jQuery's new proxy() method that allows function callbacks to be executed in the context of an object instance rather than a DOM node (which is typical ... Read More »
August 30, 2010
9:50
Powering Publish And Subscribe Functionality With Native jQuery Event Management
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Let's face it - jQuery's native event management is straight-up awesome! Between multi-type binding, name-spaced events, proxied callbacks, and function-specific unbinding, there's not much that it can't do (and do well, for that matter). Without a doubt, it's better than any event management that I could write. As such, I wondered if I could use the native jQuery event management to power publish and subscribe (pub/sub) functionality within my Javascript applications. ... Read More »
August 29, 2010
13:15
Reflections On My Client-Side MVC View-Rendering Hackathon
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Yesterday, I spent about 10 straight hours exploring client-side MVC View-rendering in my first (of many) solo hackathons . I came up with a UI design, broke it out into HTML and CSS, and then coded a thick-client application on top of it; and, I did all of this under the pretense that the project would end up being a complete failure. As I explained before, I was embracing fail ... Read More »
August 27, 2010
17:00
Using jQuery To Bind And Trigger Event Handlers On Detached DOM Nodes
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Often times, we use jQuery to bind event handlers to DOM nodes that are children of the current document tree. When we do this, jQuery stores the event handlers in the given node's "events" collection . These bindings remain in place until they are explicitly unbound or ... Read More »
10:23
Saturday Hackathon: Client-Side MVC - The Wrong Way
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Over the past week, I've heard a number of people talk about various hackathons, hack days, pitch days, and general all-night coding adventures. I've never attended one of these events and I have to say, hearing about them makes me more than a little bit jealous. I understand that a majority of the fun that people get out of these things is due to the fact that you have so many people together doing the same thing. But, I'm an impatient man and I believe that the next hackathon in my area is ... Read More »
9:04
jQuery Selectors - The Firebug Plugin Inserts A Hidden DIV Element
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Last night, I was testing out someone's jQuery queue() and dequeue() code and I had a bug that was just driving me crazy; no matter how simple I made my test, my queued callbacks kept firing twice. To give you some insight into how simple my code was, take a look at this demo: <!DOCTYPE html> <html> <head> ... Read More »
August 25, 2010
11:03
AJAX Requests Get And Set Cookies Like Any Other HTTP Request
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

Sometimes, people ask me how to handle session management within an application that makes AJAX requests. A question like this can mean many different things; but often times, after a little discussion, I discover that this question is based on a fundamental misunderstanding of what an AJAX request actually is. Because we are so used to the request-response life cycle, there is something almost magical about an AJAX request that runs in parallel to the page processing; heck, I use them all th ... Read More »
August 24, 2010
10:30
Overriding Internal ColdFusion Component Variables With Method Arguments
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

One of the many cool things that Elliott Sprehn talked about in his CFUNITED 2010 presentation was the fact that ColdFusion component variables could be overridden using method arguments. After I saw this, I tried to experiment with this concept on my own. At first, I could not get it work. Elliott's presentations were all done in C ... Read More »
August 23, 2010
9:54
Using Dynamic Keys In ColdFusion 9's Implicit Struct Creation
» ‎ Ben Nadel ColdFusion And Web Development Feed @ BenNadel.com

At CFUNITED 2010, I attended Elliott Sprehn 's presentation, " I Bet You Didn't Know You Could Do That With ColdFusion ." In his code samples, I saw something that I had never seen before - he was using quoted-keys in his ColdFusion implicit struct creation. In ColdFusion 8, this definitely causes a parsing error at compile time. But, ... Read More »

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