By mitchp
via java.dzone.com
Published: Nov 19 2012 / 08:06
I left a dirty secret lurking in my previous post about 2 phase authentication with text messages. I hope many of you felt uneasy reading the val secret = generateSecret line. The generateSecret thing has no place in purely functional code. It does some weird side-effect wizardry and computes values that are always different. Read on to find out how to keep tabs on the dirty secrets (and other IO) in your code.
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