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Ruby Ruby Operators and Control Structures Logical Operators The And (&&) Operator

Daniel Hulin
Daniel Hulin
1,852 Points
Posted by Daniel Hulin
Daniel Hulin
1,852 Points

Trouble getting return.

What part of the code is missing? I belive my trouble is understanding what "method" I should be using?

andi mitre
andi mitre
Treehouse Guest Teacher
andi mitre
andi mitre
Treehouse Guest Teacher

Daniel you haven't posted any code

Maximiliane Quel
Maximiliane Quel
Courses Plus Student 55,489 Points
Maximiliane Quel
Maximiliane Quel
Courses Plus Student 55,489 Points

We can't really see your code. Can you please copy paste what you tried?

Daniel Hulin
Daniel Hulin
1,852 Points
Daniel Hulin
Daniel Hulin
1,852 Points

I apoligise. I thought I had posted my answer. Thanks everyone for the help.

3 Answers

Ethan Weeks
Ethan Weeks
15,352 Points

In this is challenge you could have written it with two return methods like this: 

def check_speed(car_speed)
  # write your code here
  if car_speed >= 40 && car_speed <= 50
    return "safe"
  else 
    return "unsafe"  
  end
end

or with just one return method like this: 

def check_speed(car_speed)
  # write your code here
  if car_speed >= 40 && car_speed <= 50
    result = "safe"
  else 
    result = "unsafe"  
  end
  return result
end

I personally like to keep the return statement to a minimum by assign each option to a variable and returning the variable. Both ways are right! I hope that helps!

Maximiliane Quel
PLUS
Maximiliane Quel
Courses Plus Student 55,489 Points
Maximiliane Quel
Maximiliane Quel
Courses Plus Student 55,489 Points

Hi,

if you are still having trouble passing the challenge, please post your code, so we can identify what exactly is wrong with it.

@Ethan: You do not have to use the return keyword as ruby automatically returns the last line that gets run. Either the car speed is in between the boundries or it is not. Whichever case it is only one of the strings is returned. So you do not need to return anything outside of the if else block.

def check_speed(car_speed)
  # write your code here
  if car_speed >= 40 && 50 >= car_speed
    "safe"
  else
    "unsafe"
  end 
end
andi mitre
STAFF
andi mitre
Treehouse Guest Teacher
andi mitre
andi mitre
Treehouse Guest Teacher

I personally would recommend to use the return statement at is good practice and very commonly used among other languages. Thus, I would go with @Ethan's first answer but any of the ones provided are correct.

Cheers

def check_speed(car_speed)
  # write your code here
  if car_speed >= 40 && 50 >= car_speed
    return "safe"
  else
    return "unsafe"
  end 
end
Maximiliane Quel
Maximiliane Quel
Courses Plus Student 55,489 Points
Maximiliane Quel
Maximiliane Quel
Courses Plus Student 55,489 Points

you are right that an explicit return makes it more visible that we are returning something. :0)

I was merely referring to Ethan's wish to keep the return statements to a minimum. in which case leaving the return out in the first place would probably be the way to go. with such a short statement it would probably be safe to do so don't you think?

I still feel we haven't answered the original question though ...