cfunction
src/core/string.c on line 265 , column 1
(string/ascii-upper str )
Returns a new string where all bytes are replaced with the
uppercase version of themselves in ASCII. Does only a very simple
case check , meaning no unicode support.
(defn capitalize [str ]
(string (string/ascii-upper (string/slice str 0 1 )) (string/slice str 1 )))
(string/ascii-upper "hello" ) # => "HELLO"