(char-array size-or-seq) (char-array size init-val-or-seq)
Creates an array of chars
user> (char-array "asdf")
#<char[] [C@167fc18>
user> (seq (char-array "asdf"))
(\\a \\s \\d \\f)
user> (seq (char-array 10))
(\\^@ \\^@ \\^@ \\^@ \\^@ \\^@ \\^@ \\^@ \\^@ \\^@)