W3cubDocs

/Kotlin

key

Platform and version requirements: JVM (1.0), JS (1.1), Native (1.3)
abstract val key: K

Returns the key of this key/value pair.

© 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.collections/-map/-entry/key.html