kotlin-stdlib/kotlin.text/maxOfOrNull

maxOfOrNull

inline fun CharSequence.maxOfOrNull(selector: (Char) -> Double): Double?(source)
inline fun CharSequence.maxOfOrNull(selector: (Char) -> Float): Float?(source)

Returns the largest value among all values produced by selector function applied to each character in the char sequence or null if there are no characters.

If any of values produced by selector function is NaN, the returned result is NaN.

Since Kotlin

1.4
inline fun <R : Comparable<R>> CharSequence.maxOfOrNull(selector: (Char) -> R): R?(source)

Returns the largest value among all values produced by selector function applied to each character in the char sequence or null if there are no characters.

Since Kotlin

1.4