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Read UTF8 Bytes

/ Published in: ActionScript 3
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  1. // Handy ActionScript function that reports the number of bytes in a UTF-8 encoded string (the default encoding for ActionScript )
  2.  
  3. public function getNumBytesUTF8 (s:String):Number {
  4.   var byteArray:ByteArray = new ByteArray();
  5.   byteArray.writeUTFBytes(s);
  6.   return byteArray.length;
  7. }
  8. // Usage:
  9. trace(getNumBytesUTF8("automobile"));  // 10
  10. trace(getNumBytesUTF8("車"));          // 3
  11.  
  12. // Note: "number of bytes" is not the same thing as "number of characters". For "number of characters," use the String class's length variable:
  13.  
  14. trace("車".length); // 1

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