Serious help with |, ||, |=,&, &&, etc.

[Daniel]

What does | do? what about ||? |=? &? What is the difference between |/||, and &/&&? I probably should know these already, but whatever.

 

[Trickster]

| is or
|| is logical or
& is and
&& is logical and

the difference between the normal and logical forms is that the logical form performs short curciut evaluation

so if I do this
def test
p "Hello"
return true
end

false && test
you will see that the word Hello isn't produced, likewise if I do this

true || test
the word Hello isn't produced either

bool |= bool2 is the same as bool = bool | bool2
there is also an &= which is the same as bool = bool & bool2

 

[Daniel]

Thank you very much.