letterify
fun String.letterify(random: Random = Random.Default, upper: Boolean = true): String
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Replaces every ?
char for this String receiver with a random upper-case letter from the English alphabet and returns the modified String.
Return
"Letter-ified" value
Parameters
random
Seed from which to generate all random values. Defaults to Random.Default
upper
flag that will convert all replaced characters to their uppercase representation. Defaults to true