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brooksgarrett/SmartCounter.coffee

Created July 17, 2013 13:34
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I came across this today and it provides a pretty slick way of looping an array by index without running out of bounds. With array length of 3::: 1 mod 3 is 1; 2 mod 3 is 2; 3 mod 3 is 0; 4 mod 3 is 1; This is not my creation. I'm sure it is fairly standard but I saw it first in the Comments widget from the Dashing Dashboard.
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SmartCounter.coffee
(@currentIndex + 1) % comments.length
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