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Ruby Ruby Booleans Ruby Booleans Negation

Anuj Nagpal
PLUS
Anuj Nagpal
Courses Plus Student 3,748 Points
Posted by Anuj Nagpal
Anuj Nagpal
Courses Plus Student 3,748 Points

Using the negation operator, reverse the logic in the boolean statement.

Bummer! The going_too_fast method did not return the correct value.

def going_too_fast?(car_speed, speed_limit) if !(car_speed > speed_limit) return false else return true end end

car_speed.rb 
def going_too_fast?(car_speed, speed_limit)
  if !(car_speed > speed_limit)
    return false
  else
    return true
  end
end

2 Answers

Salman Akram
PLUS
Salman Akram
Courses Plus Student 40,065 Points
Salman Akram
Salman Akram
Courses Plus Student 40,065 Points

Hi Anuj,

You already add negation operation ( ! ) there as far I can see, that's good but your return method are switching from false to true in third and fifth lines. That's why you get errors messages which requires you not to change anything in boolean values except only negation operation. 

def going_too_fast?(car_speed, speed_limit)
  if !(car_speed > speed_limit)
    return true
  else
    return false
  end
end
Mateo Sossah
Mateo Sossah
6,598 Points
Mateo Sossah
Mateo Sossah
6,598 Points

If car_speed is NOT greater than speed_limit, going_too_fast? should answer FALSE. Isn't there an error in the compiler on this one?

Annie Scott
Annie Scott
27,613 Points
Annie Scott
Annie Scott
27,613 Points 
def going_too_fast?(car_speed, speed_limit)
  if (!(car_speed > speed_limit))
    return true
  else
    return false
  end
end