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|
y = 1
z = 2
b = 8
c = [1,[2,3]]
def y(a)
a * 10
end
def z(a,b)
b
end
def z?(a)
a == 10
end
def z!(a)
a == 20
end
# all these are the same (although Ruby Way claims they're different)
puts y + z # 3
puts y+z # 3
puts y+ z # 3
puts y +z # 3
puts y(+z) # 20
puts y (+z) # 20
puts y z # 20, warning: parenthesize argument(s) for future version
puts y -z # -1
puts -y -z # -3
puts +y +z # 3
puts -y(z) # -20
puts -y (z) # -20
# error puts -y z
# error puts +y z
puts z*b # 16
puts z * b # 16
puts z* b # 16
puts z *b # 16
puts z(*c) # 2\n3
puts z?(1) # false
puts z?(10) # true
puts z ? 1 : 2 # 1
puts z? 10 ?1:2 # false
puts (z? 10) ?1:2 # 1
puts (z! 20) ?1:2 # 1
puts (!z? 10) ?1:2 # 2
puts (!z! 20) ?1:2 # 2
puts (!z! 20) ?!1:!2 # false
#error puts z?(1) : 2
|
