Main.rb:3: warning: assigned but unused variable - roelof

Ruby
1

I tried my ruby out on this site :
http://www.compileonline.com/execute_ruby_online.php

So I have this script :

roelof = “www.codewars.com#about”

def remove_url_anchor(roelof)
answer = roelof.gsub(/#\w+/,“”)
puts answer
end

And it gives this wierd error message . roelof is used on several
places.
So why this error message?

Roelof

2

roelof = “www.codewars.com#about”

def remove_url_anchor(roelof) # this is declaring a new variable
as a parameter for the method
answer = roelof.gsub(/#\w+/,“”) # this uses the parameter, not the
variable you set to “www…”
puts answer
end

you need a line like the following to actually use the variable

remove_url_anchor(roelof)

From: Roelof W. [email protected]
To: Ruby users [email protected]
Date: 06/06/2014 07:48 AM
Subject: main.rb:3: warning: assigned but unused variable -
roelof
Sent by: “ruby-talk” [email protected]

I tried my ruby out on this site :
http://www.compileonline.com/execute_ruby_online.php

So I have this script :

roelof = “www.codewars.com#about”

def remove_url_anchor(roelof)
answer = roelof.gsub(/#\w+/,“”)
puts answer
end

And it gives this wierd error message . roelof is used on several
places.
So why this error message?

Roelof

3

Thanks,

Things can be so simple that you overlooked it.

Roelof

To: [email protected]
Subject: Re: main.rb:3: warning: assigned but unused variable - roelof
From: [email protected]
Date: Fri, 6 Jun 2014 08:01:14 -0400

roelof = “www.codewars.com#about”

def remove_url_anchor(roelof) # this is declaring
a new variable as a parameter for the method

answer = roelof.gsub(/#\w+/,“”) # this uses
the parameter, not the variable you set to “www…”

puts answer

end

you need a line like the following

to actually use the variable

remove_url_anchor(roelof)

From:
Roelof W. [email protected]

To:
Ruby users [email protected]

Date:
06/06/2014 07:48 AM

Subject:
main.rb:3: warning:
assigned but unused variable - roelof

Sent by:
“ruby-talk”
[email protected]

I tried my ruby out on this site :

http://www.compileonline.com/execute_ruby_online.php

So I have this script :

roelof = “www.codewars.com#about”

def remove_url_anchor(roelof)

answer = roelof.gsub(/#\w+/,“”)

puts answer

end

And it gives this wierd error message . roelof is used on several
places.

So why this error message?

Roelof