Rails separate array items with comma inside partial

Question

What is the most elegant way in Rails to create a comma-separated list inside a partial?

I\'ve just recently discovered that you can use partials to iterate through

Answer 1

Ruby's join method won't add the separator character if there is only a single element in the array.

You should be able to do the following for a list of any size:

@dvd.director.map(&:director).join(", ")