Covering some basic topics I haven't seen elsewhere on Cody.
Given a string with extra spaces in front and/or in back, return a 'centered' version of the string (e.g.: ' MATLAB' -> ' MATLAB ')
Problem is incorrectly specified, according to the cases. 'Centering' seems to mean leave at most two spaces to either side, but otherwise center in the usual sense?
I did not know this function... nice
Back to basics 5 - Clipboard
Return 'on' or 'off'
Back to basics 14 - Keywords
Valid Chess Moves
Back to basics 25 - Valid variable names
Back to basics 17 - white space
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