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toLongOrNull

Platform and version requirements: JVM (1.1), JS (1.1), Native (1.1)

fun String.toLongOrNull(): Long?

Parses the string as a Long number and returns the result or null if the string is not a valid representation of a number.

Platform and version requirements: JVM (1.1), JS (1.1), Native (1.1)

fun String.toLongOrNull(radix: Int): Long?

Parses the string as a Long number and returns the result or null if the string is not a valid representation of a number.

IllegalArgumentException - when radix is not a valid radix for string to number conversion.

© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/to-long-or-null.html