@Stultuske Addresses the question in the title.. though explanation on the expression in question would be good too.
– Aaditya GavandalkarDec 28 '15 at 14:14
@AadityaGavandalkar : if he had mentioned that in case of | the second part would be evaluated whether the first was true or false, yes, but he forgot to mention that part. He mentioned a fact, he didn't say what the difference with the | operator was.
– StultuskeDec 28 '15 at 14:20