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Get/Set Refnum vs Global
On my team, we always store refnums using the Get and Set Refnum methods to store references to pieces of the robot across VIs. When I was looking at some other teams' code, I noticed that some teams ignore the Get and Set Refnum methods and store the refnums in global variables. I can see that both work, but I would imaginge one is better than the other. Can someone with more knowledge of how the Get and Set methods work explain the pros and cons of using them over global variables?
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2017-present: Mentor FRC 5987
2017-present: CSA for FIRST in Israel
2012-2016: Member FRC 423
2013: Programmer
2014: Head Programmer, Wiring
2015: Head Programmer, Wiring
2016: Captain, Head Programmer, Wiring, Manipulator, Chassis, CAD, Business, Outreach (basically everything)
 
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I am proud whenever I turn to a team during inspections and say "OK I just need two signatures here and I will go get your sticker, you passed!" - Al Skierkiewicz [more] 
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