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 Basics Ruby Syntax Method Arguments

Posted by Syd Takeshta
Syd Takeshta
2,439 Points

"Stack level too deep" What does that mean?

"Stack level too deep" what does that mean?

say.rb 
def say (cherry)
 puts(cherry)
 say (cherry)
end

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

Unconditionally calling a function from inside itself creates a "recursion loop", and each call adds some data to the system stack. The stack quickly expands to exceed the available space (or a pre-set limit) to cause that error.

The function call should be outside (after) the function itself for this exercise.

And also note that the instructions say to "pass the string "Ruby" as an argument".