Hex encoding / decoding

clj꞉uniformity.util꞉> (def sample-bytes
  (uniformity.random/rand-bytes 8))
#'uniformity.util/sample-bytes

clj꞉uniformity.util꞉> (hex-encode sample-bytes)
"3da5f664c0f0746f"

;; byte[] on JVM, Uint8Array in JS
clj꞉uniformity.util꞉> (hex-decode "3da5f664c0f0746f")
#object["[B" 0x5ad517df "[B@5ad517df"]

;; cast to array for value comparison
clj꞉uniformity.util꞉> 
(= (into [] sample-bytes)
   (into [] (hex-decode "3da5f664c0f0746f")))
true

Base64 encoding / decoding

clj꞉uniformity.util꞉> (def sample-bytes
  (uniformity.random/rand-bytes 8))
#'uniformity.util/sample-bytes

clj꞉uniformity.util꞉> (base64-encode sample-bytes)
"FND/t6BzewM="

clj꞉uniformity.util꞉> (base64-encode-urlsafe sample-bytes)
"FND_t6BzewM"

;; base64 decode works on both normal and URL-safe strings
clj꞉uniformity.util꞉> 
(= (into [] sample-bytes)
   (into [] (base64-decode "FND/t6BzewM="))
   (into [] (base64-decode "FND_t6BzewM")))
true

JSON

These functions are under-developed and should not be relied on.

clj꞉uniformity.util꞉> (def some-struct {:foo :bar, :baz ["a" :b 3]})
#'uniformity.util/some-struct

clj꞉uniformity.util꞉> (def some-json (json-encode some-struct))
#'uniformity.util/some-json

clj꞉uniformity.util꞉> some-json
"[{\"foo\":\"bar\",\"baz\":[\"a\",\"b\",3]}]"

clj꞉uniformity.util꞉> (json-decode some-json)
[{"foo" "bar", "baz" ["a" "b" 3]}]

UTF-8

clj꞉uniformity.util꞉> (def test-utf8 (str->utf8 "Hello world 😎"))
#'uniformity.util/test-utf8

clj꞉uniformity.util꞉> (vec test-utf8)
[72 101 108 108 111 32 119 111 114 108 100 32 -16 -97 -104 -114]

clj꞉uniformity.util꞉> (utf8->str test-utf8)
"Hello world 😎"