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count

fun <T> Sequence<T>.count(): Int

Returns the number of elements in this sequence.

inline fun <T> Sequence<T>.count(
    predicate: (T) -> Boolean
): Int

Returns the number of elements matching the given predicate.

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