The Difference Between jQuery’s .bind(), .live(), and .delegate()
The difference between .bind(), .live(), and .delegate() is not always apparent. Having a clear understanding of all the differences, though, will help us write more concise code and prevent bugs from popping up in our interactive applications.
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The difference between ‘return false;’ and ‘e.preventDefault();’ | CSS-Tricks
The difference is that return false; takes things a bit further in that it also prevents that event from propagating (or “bubbling up”) the DOM.
The JavaScript Object Model: Prototypes and properties
Speaker today is Henning Koch, Head of Development at makandra.
This talk will be in German with English slides.
Introduction
As web developers we work with JavaScript every day, even when our backend code uses anothe...
Apprise - The attractive alert alternative for jQuery
An alert alternative for jQuery that looks good. Apprise is a very simple, fast, attractive, and unobtrusive way to communicate with your users. Also, this gives you complete control over style, content, position, and functionality. Apprise is, mo...
Exchange messages between Javascript and Flash
Flash movies (.swf files) can talk with Javascript code embedded in the same HTML page. There are two ways to do this:
- The preferred way is to use the [ExternalInterface](https://web.archive.org/web/20091223061723/http://livedocs.adobe.com/flas...
Differences between transactions and locking
Web applications can be used by multiple users at the same time. A typical application server like Passenger has multiple worker processes for a single app. In a distributed deployment setup like we use at makandra you w...
Problems with Rails 3 Remote Links and Forms Using jQuery .live() in IE
There is a problem with AJAX response handling for Rails 3 remote links and forms in Internet Explorer. This problem affects applications still using jQuery 1.4.2.
RCov: The difference between "code coverage" and "total coverage"
Code coverage is the ratio of code lines kissed by a test vs. the total number of lines in your source files. This sounds meaningful, but isn't.
Total coverage additionally ignores whitespace and comments when computing the coverage ratio, wh...
Difference between class_inheritable_attribute and class_attribute | martinciu's dev blog
How to make class_attribute behave like class_inheritable_attribte which no longer exists in Rails.
There is no real performance difference between "def" and "define_method"
You can define methods using def or define_method. In the real world, there is no performance difference.
define_method is most often used in metaprogramming, like so:
define_method :"#{attribute_name}_for_realsies?" do
do_things...
jQuery promises: done() and then() are not the same
jQuery's deferred objects behave somewhat like standard promises, but not really.
One of many subtle differences is that there are two ways to chain callbacks to an async fu...