The 'string' function makes the 'expr' to be a string. If the 'expr' is a string, it is returned, as is. If the 'expr' is a character, a one-character string is returned. If the 'expr' is a symbol, the symbol is turned into a string.
(string 'foo) ; returns "FOO" (string 'x) ; returns "X" (string "abcdef") ; returns "abcdef" (string #\a) ; returns "a" (string #\A) ; returns "A" (string #\Newline) ; returns "\n"
See the
string
function in the