Rails - Aug 2006 - Test for string in string

Hi,

Is there an easy way to test if a substring exists in a string?

I''m using this check:
if mystring.index(substring) > 0

but it doesn''t seem to be working....

Thanks!

-- 
Posted via http://www.ruby-forum.com/.

On 8/14/06, cman <cmalpeli@gmail.com> wrote:
> Is there an easy way to test if a substring exists in a string?
>
> I''m using this check:
> if mystring.index(substring) > 0
index returns nil if it fails to find a match, not -1 like in Java.
So you can just test for true/false.

if mystring.index(substring)
  ...
end



-- James

I believe you should be able to use:

mystring.index.include? substring

That should return true of the string contains the substring

Best Regards,

Tamim

cman wrote:
> Hi,
>
> Is there an easy way to test if a substring exists in a string?
>
> I''m using this check:
> if mystring.index(substring) > 0
>
> but it doesn''t seem to be working....
>
> Thanks!
>
>

cman wrote:
> Hi,
> 
> Is there an easy way to test if a substring exists in a string?
> 
> I''m using this check:
> if mystring.index(substring) > 0
> 
> but it doesn''t seem to be working....
> 
> Thanks!
''foobar''.include? ''foo'' #=> true
''foobar''.include? ''sup'' #=> false

-- 
Posted via http://www.ruby-forum.com/.

cman wrote:
 
> Is there an easy way to test if a substring 
> exists in a string?
> 
> I''m using this check:
> if mystring.index(substring) > 0
if mystring.include?("substring")
....
end

HTH,
Bill