From 726ec8a42625509026a6570f1d4649bfa9fe4156 Mon Sep 17 00:00:00 2001
From: Jack Works <5390719+Jack-Works@users.noreply.github.com>
Date: Sun, 20 Sep 2026 20:17:07 +0800
Subject: [PATCH] Editorial: change return value of SetViewValue from undefined
 to unused (#3981)

---
 spec.html | 37 ++++++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/spec.html b/spec.html
index 74c0c5ac3c6..994026ebf8d 100644
--- a/spec.html
+++ b/spec.html
@@ -46628,7 +46628,7 @@ <h1>
             _isLittleEndian_: an ECMAScript language value,
             _type_: a TypedArray element type,
             _value_: an ECMAScript language value,
-          ): either a normal completion containing *undefined* or a throw completion
+          ): either a normal completion containing ~unused~ or a throw completion
         </h1>
         <dl class="header">
           <dt>description</dt>
@@ -46650,7 +46650,7 @@ <h1>
           1. If _getIndex_ + _elementSize_ > _viewSize_, throw a *RangeError* exception.
           1. Let _bufferIndex_ be _getIndex_ + _viewOffset_.
           1. Perform SetValueInBuffer(_view_.[[ViewedArrayBuffer]], _bufferIndex_, _type_, _number_, *false*, ~unordered~, _isLittleEndian_).
-          1. Return *undefined*.
+          1. Return ~unused~.
         </emu-alg>
       </emu-clause>
     </emu-clause>
@@ -46880,7 +46880,8 @@ <h1>DataView.prototype.setBigInt64 ( _byteOffset_, _value_ [ , _littleEndian_ ]
         <p>This method performs the following steps when called:</p>
         <emu-alg>
           1. Let _view_ be the *this* value.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~bigint64~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~bigint64~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46889,7 +46890,8 @@ <h1>DataView.prototype.setBigUint64 ( _byteOffset_, _value_ [ , _littleEndian_ ]
         <p>This method performs the following steps when called:</p>
         <emu-alg>
           1. Let _view_ be the *this* value.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~biguint64~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~biguint64~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46899,7 +46901,8 @@ <h1>DataView.prototype.setFloat16 ( _byteOffset_, _value_ [ , _littleEndian_ ] )
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~float16~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~float16~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46909,7 +46912,8 @@ <h1>DataView.prototype.setFloat32 ( _byteOffset_, _value_ [ , _littleEndian_ ] )
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~float32~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~float32~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46919,7 +46923,8 @@ <h1>DataView.prototype.setFloat64 ( _byteOffset_, _value_ [ , _littleEndian_ ] )
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~float64~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~float64~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46928,7 +46933,8 @@ <h1>DataView.prototype.setInt8 ( _byteOffset_, _value_ )</h1>
         <p>This method performs the following steps when called:</p>
         <emu-alg>
           1. Let _view_ be the *this* value.
-          1. Return ? SetViewValue(_view_, _byteOffset_, *true*, ~int8~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, *true*, ~int8~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46938,7 +46944,8 @@ <h1>DataView.prototype.setInt16 ( _byteOffset_, _value_ [ , _littleEndian_ ] )</
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~int16~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~int16~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46948,7 +46955,8 @@ <h1>DataView.prototype.setInt32 ( _byteOffset_, _value_ [ , _littleEndian_ ] )</
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~int32~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~int32~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46957,7 +46965,8 @@ <h1>DataView.prototype.setUint8 ( _byteOffset_, _value_ )</h1>
         <p>This method performs the following steps when called:</p>
         <emu-alg>
           1. Let _view_ be the *this* value.
-          1. Return ? SetViewValue(_view_, _byteOffset_, *true*, ~uint8~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, *true*, ~uint8~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46967,7 +46976,8 @@ <h1>DataView.prototype.setUint16 ( _byteOffset_, _value_ [ , _littleEndian_ ] )<
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~uint16~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~uint16~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>
 
@@ -46977,7 +46987,8 @@ <h1>DataView.prototype.setUint32 ( _byteOffset_, _value_ [ , _littleEndian_ ] )<
         <emu-alg>
           1. Let _view_ be the *this* value.
           1. If _littleEndian_ is not present, set _littleEndian_ to *false*.
-          1. Return ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~uint32~, _value_).
+          1. Perform ? SetViewValue(_view_, _byteOffset_, _littleEndian_, ~uint32~, _value_).
+          1. Return *undefined*.
         </emu-alg>
       </emu-clause>