unscriptable

var HAS_EXPANDING_BOX_BUG = (function(){
  var el = document.createElement('div'),
      isBuggy = false;
  el.style.height = '1px';
  document.body.appendChild(el);
  isBuggy = (el.offsetHeight > 1);
  document.body.removeChild(el);
  el = null;
  return isBuggy;
})();

unscriptable

javascript: /* removes annoying footer and body scrollbars, cleans-up the chat transcript, and notifies via sound when a new message arrives when in the background */
$('footer_container').style.display='none';
$$('body')[0].style.overflow='hidden';
var ss1=document.styleSheets[0];
ss1.addRule('.chat_transcript_info', 'opacity:0;-webkit-transition:opacity 0.5s ease 0.5s;');
ss1.addRule('#chat_transcript:hover .chat_transcript_info', 'opacity:1;');
ss1.addRule('.small_channel_img', 'display:none;');
var soundCont = document.body.appendChild(document.createElement('div'));
soundCont.innerHTML = '<embed src="http://unscriptable.com/home/sounds/button-9.mp3" autostart=false width=0 height=0 id="msgSound" enablejavascript="true">';
window._startBlinkTitle = window.startBlinkTitle;

unscriptable

// original (http://html5shiv.googlecode.com/svn/trunk/html5.js)

(function(){if(!/*@cc_on!@*/0)return;var e = "abbr,article,aside,audio,canvas,datalist,details,figure,figcaption,footer,header,hgroup,mark,menu,meter,nav,output,progress,section,summary,time,video".split(','),i=e.length;while(i--){document.createElement(e[i])}})()

// kangax version (29 characters less, yay!)

/*@cc_on(function(e,i){i=e.length;while(i--)document.createElement(e[i])})("abbr,article,aside,audio,canvas,datalist,details,eventsource,figure,footer,header,hgroup,mark,menu,meter,nav,output,progress,section,time,video".split(','))@*/

unscriptable

        $.each(itemList, function (which) {

            // if dev passed an array
            if ($.isArray(itemList))
                // use the 2nd arg as item name (1st arg is array index)
                which = arguments[1];

            // check if we've already initialized this item
            var already = doneMap[which];
            if (!already)

unscriptable

My comment on nettuts+ that didn't get approved (I wonder why) http://bit.ly/bwb18i

It seems that this post started out with good intentions: How to show junior javascript programmers how to use the Firebug profiling commands. However, due to crappy jQuery advice, turned into an illustration of web programming anti-patterns (aka “Programming No-nos”).
I have to agree with James (of course), and would add the following:

———-

Premature optimization.

Do not try to second-guess the framework (jQuery, prototype, dojo, etc.) unless you’ve already got a performance problem. The people who build those frameworks have done an excellent job and have designed them to work well in most situations.

unscriptable

cujo.js equivalent (in-browser):

file: myApp.view.LoginPanel.html

<div class="myapp-view-loginpanel">
    <span data-attach="greeting">${display.greeting}</span>
    <a data-attach="action" href="{$config.loginUrl}">{$display.loginAction}</a>
</div>

logout version extends login version (inheritance defined in myApp.view.LogoutPanel.js:

unscriptable

		attributeMap: {
			seconds: {
				data: "seconds",
				type: "no-dom"
			},
			displaySeconds: {
				source: "seconds",
				deriver: "_displaySeconds",
				type: "no-dom"
			}

unscriptable

function init () {
    // find widgets by id:
    var myStandby = dijit.byId('basicStandby1'),
        myForm = dijit.byId('myForm');
    // i don't think you need this line, but i haven't studied the BasicStandby widget
    //document.body.appendChild(myStandby.domNode);
    dojo.connect(myForm, 'onSubmit', function() {
        myStandby.show();
    });

unscriptable

// result sets (two identical queries)
var rs1, rs2;

//items to watch (two instances of same model data)
var item1, item2;

dojo.when(store.query({}), function (results) {
  rs1 = results;
  item1 = results[0];
  // item1.get('prop') == 'foo'

unscriptable

function createObject (ctor, args) {
    function F () {
        ctor.apply(this, args);
    }
    F.prototype = ctor.prototype;
    F.prototype.constructor = ctor; // IE might need this
    return new F();
}

// quick test: