diff --git a/index.bs b/index.bs
index c6a0cf7d6..fc4d3cc6a 100644
--- a/index.bs
+++ b/index.bs
@@ -6365,10 +6365,9 @@ The following algorithms must only be used on {{ReadableStream}} instances initi
  1. Let |byobRequest| be !
     [$ReadableByteStreamControllerGetBYOBRequest$](|stream|.[=ReadableStream/[[controller]]=]).
  1. If |byobRequest| is null, then return null.
- 1. Return |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=].\[[ByteLength]].
+ 1. Return |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=]'s [=BufferSource/byte length=].
 </div>
 
-<!-- TODO: use https://github.com/heycam/webidl/pull/987's "create" and "write" when they land. -->
 <div algorithm>
  To <dfn export for="ReadableStream">enqueue bytes</dfn> into a {{ReadableStream}} |stream| given a
  [=byte sequence=] |bytes|:
@@ -6379,17 +6378,16 @@ The following algorithms must only be used on {{ReadableStream}} instances initi
  1. Let |byobRequest| be !
     [$ReadableByteStreamControllerGetBYOBRequest$](|stream|.[=ReadableStream/[[controller]]=]).
  1. If |byobRequest| is null, or |bytes|'s [=byte sequence/length=] >
-    |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=].\[[ByteLength]], then:
-  1. Let |uint8Array| be a new {{Uint8Array}} wrapping an {{ArrayBuffer}} backed by |bytes|.
+    |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=]'s [=BufferSource/byte length=], then:
+  1. Let |uint8Array| be the result of [=ArrayBufferView/creating=] a new {{Uint8Array}} from
+     |bytes|.
   1. Perform ! [$ReadableByteStreamControllerEnqueue$](|stream|.[=ReadableStream/[[controller]]=],
      |uint8Array|).
  1. Otherwise,
   1. Assert: |bytes|'s [=byte sequence/length=] ≤
-     |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=].\[[ByteLength]].
-  1. Write |bytes| into
-     |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=].\[[ViewedArrayBuffer]].\[[ArrayBufferData]],
-     starting at the byte offset given by
-     |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=].\[[ByteOffset]].
+     |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=]'s [=BufferSource/byte length=].
+  1. [=ArrayBufferView/Write=] |bytes| into
+     |byobRequest|.[=ReadableStreamBYOBRequest/[[view]]=].
 
      Implementations are encouraged to, when possible, do this directly from whatever underlying
      I/O system is producing |bytes|. In this sense the existence of an intermediate |bytes|