cfunction
src/core/string.c on line 310 , column 1
(string/find patt str &opt start-index )
Searches for the first instance of pattern `patt` in string `str` .
Returns the index of the first character in `patt` if found ,
otherwise returns nil.
(string/find "a" "abcdefa" 1 )
# not yet documented start ^ position
# => 6
(string/find "needle"
"hay hay hay needle hay" )
# => 12