For Eclipse to regcognize projects with Flex nature you need to edit .project file and make sure that the flex natures are the first in the list:

<natures>
	<nature>com.adobe.flexbuilder.project.flexnature</nature>
	<nature>com.adobe.flexbuilder.project.actionscriptnature</nature>
	<nature>org.eclipse.jdt.core.javanature</nature>
	<nature>org.maven.ide.eclipse.maven2Nature</nature>
	<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
	<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
</natures>

Remove zeros function from left side of a number.

private function removeLeftZero(value:String):String {
	var pattern:RegExp = /^0*/;
	return value.replace(pattern,'');
}

Static variables of a class can be initialized automatically with a snip code within package between curly brackets as following:

package com.arcadio
{
    [Bindable]
    public class MyClass
    {
            public static var myText:String="Hello";
            public function MyClass()
            {

            }
    }
    {
    MyClass.myText="Bye";
    }
}

¡Thanks Alfonso by your note!

Code to iterate over the properties of the objects of a collection:

[Bindable]
public var items:ArrayCollection = new ArrayCollection ([
	{prop1:false, prop2:1, prop3:'One'},
	{prop1:true, prop2:2, prop3:'Two'},
	{prop1:false, prop2:3, prop3:'Three'}
]);

for each (var item:Object in items) {
	trace("Object: "+ item);
	for (var prop:Object in item) {
		trace("Prop "+prop + " value: "+item[prop]);
	}
}

Component to automatic adjust of LinkButton to resize the button to the container with reference ref or as parent.

<?xml version="1.0" encoding="utf-8"?>
<mx:LinkButton xmlns:mx="http://www.adobe.com/2006/mxml"
			   initialize="onInitialize()"
			   creationComplete="onCreationComplete()"
			   resize="onResize()">
	<mx:Script>
		<![CDATA[
			import mx.core.Container;

			[Bindable]
			public var ref:Container;

			private function onInitialize():void {
				width=0;
			}

			private function onCreationComplete():void {
				if (ref!=null) {
					ref.addEventListener('resize',function():void {onResize()});
				} else {
					parent.addEventListener('resize',function():void {onResize()});
				}
			}

			private function onResize():void {
				if (ref!=null) {
					width=ref.width;
				} else {
					width=parent.width;
				}
			}

		]]>
	</mx:Script>
</mx:LinkButton>