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codePointCount

kotlin-stdlib / kotlin.text / codePointCount
Platform and version requirements: JVM (1.0) 
fun String.codePointCount(
    beginIndex: Int, 
    endIndex: Int
): Int

Returns the number of Unicode code points in the specified text range of this String.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/code-point-count.html