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Can someone provide explaination as to what "return(x if x else 9)" is doing? I understand it is returning the output, but I do not understand the logic of how because how does the proram know when to return '9' versus 'x'?
Recursive Digit Sum
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Instead of
x if x else 9you can just dox or 9Can someone provide explaination as to what "return(x if x else 9)" is doing? I understand it is returning the output, but I do not understand the logic of how because how does the proram know when to return '9' versus 'x'?
it means: if x>0 then return x because if x=0 and 0==false then return 9
https://en.wikipedia.org/wiki/Modular_arithmetic