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DOM API returns ArrayBuffer but what I need is Array[Byte]. How can I do a conversion?

import scala.scalajs.js.typedarray.ArrayBuffer

def toScalaArray(input: ArrayBuffer): Array[Byte] = {
  // code in question
}
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1 Answer 1

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Wrap it in an Int8Array, then call the extension method .toArray defined in the typedarray package:

import scala.scalajs.js.typedarray._

def toScalaArray(input: ArrayBuffer): Array[Byte] =
  new Int8Array(input).toArray
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