data:image/png;base64,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

index

data:image/png;base64,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item (random) of (data) is great for cycling randomly through a list of students, but what if you want to have it cycle sequentially through the list? This is done via closures. https://en.wikipedia.org/wiki/Closure_(computer_programming) Enjoy! -Dan Garcia <ddgarcia@cs.berkeley.edu>The hardcoded way with an ugly global variableThe closure-based, more general way...3A,B,CChocolate,Vanilla,Strawberry,Pistacio