← Docs
kotlin-stdlib / kotlin.sequences / firstOrNull

firstOrNull

Common
JVM
JS
Native
1.0
fun < T > Sequence < T > . firstOrNull ( ) : T ?
(source)

Returns the first element, or null if the sequence is empty.

The operation is terminal .

Common
JVM
JS
Native
1.0
inline fun < T > Sequence < T > . firstOrNull (
predicate : ( T ) -> Boolean
) : T ?

(source)

Returns the first element matching the given predicate , or null if element was not found.

The operation is terminal .

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