Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Carl Smith
Carl Smith
8,185 Points

Unable to figure out to how to use this logical operator correctly.

I can't figure out how to write what it's asking me correctly. I think I'm close, but seems I have a syntax error.

ruby.rb 
def check_speed(car_speed)
  if (check_speed >= 40) && (check_speed <= 50)
    return "safe"
  else 
    return "unsafe"
end

1 Answer

Luke Pettway
Luke Pettway
16,593 Points

The error says " syntax error, unexpected end-of-input, expecting keyword_end". Looking at the code, it looks like your if statement is missing an end. You are also using check_speed in your if when you need to use car_speed. 

def check_speed(car_speed)
  if (car_speed >= 40) && (car_speed <= 50)
    return "safe"
  else 
    return "unsafe"
  end
end
Carl Smith
Carl Smith
8,185 Points

Thank you Luke! I actually figured it out right before checking this answer. I originally used car_speed, didn't understand the syntax error so I thought I'd try with the check_speed. However, the problem was with the end statement like you pointed out. Thank you again!

Thomas Beaudry
Thomas Beaudry
29,084 Points
Thomas Beaudry
Thomas Beaudry
29,084 Points

Hello Luke, do we use 2 "ends" at the bottom?

Luke Pettway
Luke Pettway
16,593 Points

Thomas Beaudry yes, you would use two because the def needs to have an end, and the if statement would need one as well.

Thomas Beaudry
Thomas Beaudry
29,084 Points
Thomas Beaudry
Thomas Beaudry
29,084 Points

Hi Luke, thank you for sharing this with me, I am a newbie on Ruby, and I've never run into this before in other languages, great job! :)