ExtJS.Bugs
ext-2.0.2\source\util\MixedCollection.js:83-84
var old = this.map[key]; if ( old ) {
Will fail if false boolean values (or other falsey values) are stored in the collection.
Suggested fix:
var old = this.map[key]; if ( typeof old !== "undefined" ) {
ext-2.0.2\source\util\MixedCollection.js:391
c[c.length] = {key: k[i], value: items[i], index: i};
Two scripted operations instead of one. Why?
Suggested fix:
c.push( {key: k[i], value: items[i], index: i} );
ext-2.0.2\source\util\MixedCollection.js
Why aren't the "private" functions '_sort' and 'createValueMatcher' stored in a closure? Rather they are exposed as part of the public interface.
ext-2.1\source\util\TaskMgr.js
Example code, lines 10 to 23, seems like a bad idea. Using a static fly-weight object from a background "thread". This only works because the scripting environment isn't actually multi-threaded.
var task = { run: function(){ Ext.fly('clock').update(new Date().format('g:i:s A')); }, interval: 1000 //1 second }