addyosmani

(function(){var d=document,j=d.getElementById('__cornify_nodes'),k=null;var files=['http://cornify.com/js/cornify.js','http://cornify.com/js/cornify_run.js'];if(j){cornify_add();}else{k=d.createElement('div');k.id='__cornify_nodes';d.getElementsByTagName('body')[0].appendChild(k);for(var l=0;l<files.length;l++){j=d.createElement('script');j.src=files[l];k.appendChild(j);}}})();

nrrrdcore

.list-container {
  border-radius: 5px;
  border: 1px solid #C5C5C5;
  box-shadow: inset 0 1px 0 #FFF;
}

ol {
  border: 1px solid transparent;
}

connor

what is feature detection?

Feature detection is the concept of detecting if a specific feature is available, instead of developing against a specific browser. This way, developers can write their code for two cases: the browser does support said feature, or the browser does not support said feature.

Developing against specific features, instead of developing against a specific browser, not only clears up the peripheral logic of your application, but also makes your job easier as a developer, for several reasons.

user-agent testing

Without getting into too many specifics, there are two specific reasons why User-Agent testing (developing against a specific browser) is looked down upon, instead of checking to see if a specific feature is supported: they are inconvenient and unreliable.

connor

Introduction to Events

Events are at the heart of most pages utilizing JavaScript. For our JavaScript to perform an action, we must wait for a specific event to happen, and then execute the predefined action.

What an event is

While it was hinted at earlier, events are things that happen on the page. The majority of events utilized in JavaScript applications are user-driven, like: clicking a button, hovering over an element, and pressing a key. However, there are many other events that the browser fires, like: loading all of the resources on a page or going offline. MDN has a good reference of available DOM events.

Performing an action when an event happens

seamusjr

Setup new Mac with OSX Lion from scratch.

These commands are good as of 2012-03-18.

Install Xcode 4

The download/install takes a while so start it first. When it finishes downloading you will still need to run it to complete installation.

Note: Make sure you install the XCode Command Line Tools after XCode is done installing. To do this go to Xcodes -> Preferences -> Downloads -> Command Line Tools -> Install. If you don't you might not be able to install brew packages (i.e. brew install wget will fail).*

• Thanks to Rico for posting the fix (http://ricochen.wordpress.com/2012/02/18/installing-git-on-mac-os-x-lion-through-homebrew-error-fix/)