lib/active_support/inflector/methods.rb in activesupport-5.0.0.beta3 vs lib/active_support/inflector/methods.rb in activesupport-5.0.0.beta4

@@ -138,9 +138,18 @@
       end
 
       result
     end
 
+    # Converts just the first character to uppercase.
+    #
+    #   upcase_first('what a Lovely Day') # => "What a Lovely Day"
+    #   upcase_first('w')                 # => "W"
+    #   upcase_first('')                  # => ""
+    def upcase_first(string)
+      string.length > 0 ? string[0].upcase.concat(string[1..-1]) : ''
+    end
+
     # Capitalizes all the words and replaces some characters in the string to
     # create a nicer looking title. +titleize+ is meant for creating pretty
     # output. It is not used in the Rails internals.
     #
     # +titleize+ is also aliased as +titlecase+.