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Ruby

John Fisher
John Fisher
7,974 Points

Boolean Logic question

Hi

Can someone tell me why:

not true or true returns true

but:

not true || true returns false?

1 Answer

Maciej Czuchnowski
Maciej Czuchnowski
36,440 Points

It's a question of precedence. This should help you:

http://stackoverflow.com/questions/27429711/can-someone-explain-not-vs-in-ruby

Do some experiments in IRB on your own to fully understand how precedence works in these cases (for example, use ! instead of not in your two examples). This will be very useful once you start implementing it in your apps.

John Fisher
John Fisher
7,974 Points

thanks. Think i get it now.