rails view helper each with separator

Question

I'm sure I saw a while back a rails helper method where .each in the view accepts a separator such as a comma.

So say I want:

- @results.each do |result| 
  = result.title

#to output
result 1, result 2, result 3

TIA

Answer 1

Not sure what you are refering to, but:

@results.collect { |r| r.title }.join( ',' )

should do what you want.

Answer 2

I think

@results.map(&:title).to_sentence

should do the job. See docu.