kotlin-stdlib/kotlin.text/randomOrNull

randomOrNull

inline fun CharSequence.randomOrNull(): Char?
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Returns a random character from this char sequence, or null if this char sequence is empty.

Since Kotlin

1.4

fun CharSequence.randomOrNull(random: Random): Char?
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Returns a random character from this char sequence using the specified source of randomness, or null if this char sequence is empty.

Since Kotlin

1.4