Simply put, I''m trying to generate a constant for displaying length
measurements in a select(). I would like to go from 1 to 40 but display
'' for feet. So the array I need is something like:
MEASUREMENTS = [[1, 1''], [2, 2''], [3, 3'']...]
Here is what I''ve got so far:
1.upto(40) {|x| [x.to_s + "''", x]}
But I''m not sure how to create an array of arrays with that. Maybe
map()? Thanks!
--
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m = []
1.upto(40) {|x| m << [x.to_s + "''", x]}
cheers
ivor
Taylor Strait wrote:> Simply put, I''m trying to generate a constant for displaying
length
> measurements in a select(). I would like to go from 1 to 40 but display
> '' for feet. So the array I need is something like:
>
> MEASUREMENTS = [[1, 1''], [2, 2''], [3, 3'']...]
>
> Here is what I''ve got so far:
>
> 1.upto(40) {|x| [x.to_s + "''", x]}
>
> But I''m not sure how to create an array of arrays with that.
Maybe
> map()? Thanks!
>
>
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That worked great. I was so close! Thank you. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Taylor Strait wrote:> Simply put, I''m trying to generate a constant for displaying length > measurements in a select(). I would like to go from 1 to 40 but display > '' for feet. So the array I need is something like: > > MEASUREMENTS = [[1, 1''], [2, 2''], [3, 3'']...] > > Here is what I''ve got so far: > > 1.upto(40) {|x| [x.to_s + "''", x]} > > But I''m not sure how to create an array of arrays with that. Maybe > map()? Thanks! > >Yup, you could use map (aka collect) as follows... select_array = (1..40).collect { |x| [ "#{x}''", x ] } iterates through (1..40), appending the result of the block for that element to an array that gets returned after the collect function completes, and sets select_array equal to the ''temporary'' array that the collect method returns Hope it helps! Gustav Paul gustav-PUm+PnBUKx7YkQIYctQFYw@public.gmane.org -- about me: My greatest achievement was when all the other kids just learnt to count from 1 to 10, i was counting (0..9) - gustav.paul --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---