In ActionScript, text fields formatted via TextFormat, CSS, or HTML have an undocumented maximum font size of 127px. The limitation is based on historical requirements placed on Flash Player by the operating system. The limit also applies to dynamic and input text created in the Flash authoring tool, but not to static text. Fortunately, the 127 font-size limit can be overcome with an ugly little workaround: set the font size,...

Take a look at this code: trace(1 + + 2); // Output: 3 It may seem strange to us, but ActionScript considers it legal. It assumes you mean: trace(1 + (+2)); which produces the value 3. Now take a look at this code: // Oops! One too many + signs... trace("Hello" + + " world"); Once again, ActionScript assumes you mean: trace("Hello" + (+ " world")); which yields the following...

In Flash Player 9, the time required to register a listener for a given event increases as the number of listeners already registered for that event increases. Here are the results of a simple event-registration test on a P4-2.6ghz machine running Windows XP: Registering 1000 listeners for an event took .06ms per registration (i.e., an average of .06ms to run addEventListener() once). Registering 20000 listeners for the same event took...