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firstOrNull

fun <T> Sequence<T>.firstOrNull(): T?

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

inline fun <T> Sequence<T>.firstOrNull(
    predicate: (T) -> Boolean
): T?

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

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/first-or-null.html