function Right(str, n)
/***
IN: str - the string we are RIGHTing
n - the number of characters we want to return
RETVAL: n characters from the right side of the string
***/
{
if (n <= 0) // Invalid bound, return blank string
return "";
else if (n > String(str).length) // Invalid bound, return
return str; // entire string
else { // Valid bound, return appropriate substring
var iLen = String(str).length;
return String(str).substring(iLen, iLen - n);
}
}
See also:
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Robotics nuts!Check out http://users.frii.com/dlc/robotics/projects/botproj.htm from Dennis Clark. This guy ROCKS! He has made (and sells but also releases code, docs, etc...) for a number of cool little robotic modules including whiskers, IR proximity detect and remote control, Sonar proximity detect, PWM, Servo, compass. Most of these use the little PIC 12C508 controller which costs basically nothing and is soooo tiny.The 4 servos, 2400 baud serial servo controller is a wonder of magic and he sells the programmed chip for $8. Wow! |
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