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Question

I notice that I'm looking for the meaning of symbols like this :&& and two stripes vertical.. Anybody?

Answer 1

// this is a comment line
and this && means boolean AND
so maybe you are not looking for comment but for the OR code ||
&& both arguments have to be true or it returns false
|| one of the arguments have to be true to return true

Answer 2

Thanks for quick reply!

Answer 3

/* text in the here
and even more text down here*/ this is multiple line comment...