Adobe Flex Actionscript Question:

► URLLoader class to load text or binary data (The ActionScript 2.0 MovieClipLoader and LoadVars classes are not used in ActionScript 3.0. The Loader and URLLoader classes replace them.)

► Sound.computeSpectrum() (Takes a snapshot of the current sound wave and places it into the specified ByteArray object. It returns a ByteArray containing 512 normalized values (-1 to 1) that can be used to visually display the waveform of sound. 256 values for the left channel and 256 values for the right channel. These values can be use to create Sound Spectrum Analyzer displays in Audio Players like Winamp and Windows Media Playres.)

► BitmapData.getPixels() (Generates a byte array from a rectangular region of pixel data. Writes an unsigned integer (a 32-bit unmultiplied pixel value) for each pixel into the byte array. No need to loop through every pixel in a bitmap, one at a time with getPixel to send a bitmap to the server.)

► MovieClip.currentLabel (This returns the label of the current frame as a String. The current label in which the playhead is located in the timeline of the MovieClip instance. If the current frame has no label, currentLabel is set to the name of the previous frame that includes a label. If the current frame and previous frames do not include a label, currentLabel returns null.)

► stage.frameRate ( At runtime frame rate of stage can be change)