JC Fant IV
About
JC Fant IV is a Software Engineer at Amazon.com. He has been working as a Web Developer for the last 10 years. Currently he is diving into performance and other technologies around JavaScript.
Current Projects
Currently I am working on test for JSPerf and what it means for Javascript in General. Many things we think we know to be true, may in the end be incorrect. Do this, not that!
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Category Archives: jQuery
jQuery ready, delegate, live!
Recently I was browsing through the jQuery subr reddit and noticed this question pop up. Since I am sure this is a pretty common question on "Why won't my jQuery command work properly", I figured I would give a shot at answering it. Hey guys, I'm sure this has been answered before but I can't [...]
Writing and Updating DOM Elements in a Frame
Handling writing and updating objects in an iframe can be bothersome in most browsers. Sure things like jQuery tend to help, but not always. A normal way to access a frame in jQuery is below: $("#FRAME").contents() Now, lets say you actually want to get another element inside of the frame, lets get the HEAD element. [...]
Expanding the jQuery Plugin Development Pattern
Doing research on a recent project, I came across an article by Mike Alsup on a "jQuery Plugin Development Pattern". If you haven't seen it already its worth a trip to learningjquery.com to checkout the implementation of his pattern. "There are a few requirements that I feel this pattern handles nicely:" Claim only a single [...]
jQuery 1.5 Deferreds
Eric Hynds on his blog the other day gave a very good run down of jQuery 1.5 Deferreds. From the post: Deferreds, new in jQuery 1.5, decouple logic dependent on the outcome of a task from the task itself. They’re nothing new to the JavaScript scene; Mochikit and Dojo have implemented them for some time, [...]
$(“#ID”) is fast enough
We all know that the fastest selector to use is the ID. Something like $("#id") is better than using a class. However, after looking at the last test we did on The Great Assumption - JavaScript I noticed a large discrepancy in $("#ID") versus the native document.getElementById(). Now, I always assumed it was slower, but [...]
The Great Assumption – Javascript
A couple of weeks ago I was sitting down with a Google Frontend Engineer friend of mine, talking about some of the JavaScript best practices we all have come to know and abide by. I found myself in agreement with 90% of everything we were talking about. However, something kept eating at me. Why do [...]
Custom Events in jQuery
*quick note: I originally posted this on trulyevil.com. However its time to move sites and actually keep something up and running for a while. Events seem daunting at first, but really jQuery makes them super simple. Events can be used to alter behavior or even have multiple events happen on a single state change. We [...]