fun String.toLongOrNull(): Long?
Platform and version requirements: Kotlin 1.1
fun String.toLongOrNull(radix: Int): Long?
Platform and version requirements: Kotlin 1.1
Parses the string as a Long number and returns the result or null if the string is not a valid representation of a number.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/to-long-or-null.html