v1.7.10
  • Solutions
    • Multiplatform Mobile
    • Multiplatform for other platforms
    • Server-side
    • Web frontend
    • Data science
    • Android
  • Docs
  • Community
  • Teach
  • Play
    • Playground
    • Hands-on
    • Examples
    • Koans
← Docs
kotlin-stdlib / kotlin / takeUnless

takeUnless

Common
JVM
JS
Native
1.1
inline fun <T> T.takeUnless(predicate: (T) -> Boolean): T?
(source)

Returns this value if it does not satisfy the given predicate or null, if it does.

For detailed usage information see the documentation for scope functions.

Stay in touch:
  • Contributing to Kotlin
  • Releases
  • Press Kit
  • Security
  • Blog
  • Issue Tracker
  • Brand assets
  • Careers
Kotlin™ is protected under the Kotlin Foundation and licensed under the Apache 2 license.
Supported and developed by JetBrains