clojure.core/char

View this page on ClojureDocs

Type: function Added: Clojure 1.1 Examples: 5 Runnable: 3

([x])

Coerce to char

Examples

by mattdw on 2010-07-28 . May have evaluation errors. ▶

;; can coerce an int (or similar) (char 97) \a ;; a byte can be coerced to a char (let [bytes-array (.getBytes "abc")] (char (first bytes-array))) \a ;; char is just a function (map char [65 66 67 68]) (\A \B \C \D)

by teymuri on 2015-10-06 ▶

(->> [67 108 111 106 117 114 101] (map char) (apply str)) "Clojure"

by loeschzwerg on 2019-07-07 . May have evaluation errors. ▶

;; backslash (char 92) \\ ;; String madness: (map str [\n \newline \\]) ["n" "\n" "\\"] ;; convert back to int: (int \\) 92 ;; whoops! this will expect additional input because it char's the bracket (char \) #=> ;; don't you dare this! (char \ ) \space ;; make it readable (char \space) \space ;; it gets uglier! Mark the text to see the difference \ #=> \ \space ;; MaDnEsS!1! \\\\\\\\ \\ \\ \\ \\

by vladkotu on 2019-12-10 ▶

;; string to code round trip ;; input string (def in-string "鬼") ;; single char from string (def in-char (.charAt in-string 0)) ;;=> \鬼 ;; code from char (def code (int in-char)) ;;=> 39740 ;; char from code (def out-char (char code)) ;;=> \鬼 ;; back to input string (def out-string (str out-char)) ;;=> "鬼"

by mars0i on 2023-01-21 ▶

(defn u-sub-char "If n is a single-digit integer in [0, ..., 9], returns the Unicode supscript character for n. Returns nil for other numbers." [n] (if (and (>= n 0) (<= n 9)) (char (+ 0x2080 n)) nil))

See also

• clojure.core/char?
• clojure.core/int
• clojure.core/chars (1)
• clojure.core/char-array (0)

---

Content from the matching ClojureDocs page, with authors credited on each contribution.