Ruby array to string conversion

> a = ['12','34','35','231']
> a.map { |i| "'" + i.to_s + "'" }.join(",")
=> "'12','34','35','231'"

I'll join the fun with:

['12','34','35','231'].join(', ')
# => 12, 34, 35, 231

EDIT:

"'#{['12','34','35','231'].join("', '")}'"
# => '12','34','35','231'

Some string interpolation to add the first and last single quote :P

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