Ruby on Rails: Converting “SomeWordHere” to “some word here”

Question

I know you can do something like:

\"SomeWordHere\".underscore.gsub(\"_\", \" \") 

to get \"some word here\".

I thought that might

Answer 1

You can use a regular expression:

puts "SomeWordHere".gsub(/[a-zA-Z](?=[A-Z])/, '\0 ').downcase

Output:

some word here

One reason you might prefer this is if your input could contain dashes or underscores and you don't want to replace those with spaces:

puts "Foo-BarBaz".underscore.gsub('_', ' ')
puts "Foo-BarBaz".gsub(/[a-zA-Z](?=[A-Z])/, '\0 ').downcase

Output:

foo bar baz
foo-bar baz