Ruby gsub multiple characters in string

Question

Using Ruby 1.9.3, Rails 3.2, I have the following:

\"every good boy does fine\".gsub(\"every\", \"all\").gsub(\"boy\", \"girl\").gsub(\"fine\", \"well\")
# =         


        

Answer 1

subs = { "every" => "all", "boy" => "girl", "fine" => "well" }
"every good boy does fine".gsub(/\w+/) { |m| subs[m] || m }
# => 'all good girl does well'