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

ruby-talk
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 Wobben <r.wobben@home.nl>
To: Ruby users <ruby-talk@ruby-lang.org>
Date: 06/06/2014 07:48 AM
Subject: main.rb:3: warning: assigned but unused variable - roelof
Sent by: "ruby-talk" <ruby-talk-bounces@ruby-lang.org>

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: ruby-talk@ruby-lang.org
Subject: Re: main.rb:3: warning: assigned but unused variable - roelof
From: HANSEM1@nationwide.com
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 Wobben <r.wobben@home.nl>

To:
Ruby users <ruby-talk@ruby-lang.org>

Date:
06/06/2014 07:48 AM

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

Sent by:
   "ruby-talk"
<ruby-talk-bounces@ruby-lang.org>

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