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size

kotlin-stdlib / kotlin.collections / HashSet / size
Platform and version requirements: Native (1.3) 
val size: Int
Platform and version requirements: JS (1.1) 
open val size: Int

Returns the size of the collection.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-hash-set/size.html