From fdd836e1a6fb1de80339fa05c0c4fad578064068 Mon Sep 17 00:00:00 2001
From: michaelficarra <github@michael.ficarra.me>
Date: Tue, 12 Dec 2023 22:07:36 +0000
Subject: [PATCH] =?UTF-8?q?Deploying=20to=20gh-pages=20from=20@=20tc39/pro?=
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@@ -9,7 +9,7 @@
 </ul></div><div id="menu-toggle"><svg xmlns="http://www.w3.org/2000/svg" style="width:100%; height:100%; stroke:currentColor" viewBox="0 0 120 120">
       <title>Menu</title>
       <path stroke-width="10" stroke-linecap="round" d="M30,60 h60  M30,30 m0,5 h60  M30,90 m0,-5 h60"></path>
-    </svg></div><div id="menu-spacer" class="menu-spacer"></div><div id="menu"><div id="menu-search"><input type="text" id="menu-search-box" placeholder="Search..."><div id="menu-search-results" class="inactive"></div></div><div id="menu-pins"><div class="menu-pane-header">Pins</div><ul id="menu-pins-list"></ul></div><div class="menu-pane-header">Table of Contents</div><div id="menu-toc"><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-well-known-intrinsic-objects" title="Well-Known Intrinsic Objects"><span class="secnum">1</span> Well-Known Intrinsic Objects</a></li><li><span class="item-toggle">◢</span><a href="#sec-abstract-operations" title="Abstract Operations"><span class="secnum">2</span> Abstract Operations</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-SetterThatIgnoresPrototypeProperties" title="SetterThatIgnoresPrototypeProperties ( this, home, p, v )"><span class="secnum">2.1</span> SetterThatIgnoresPrototypeProperties ( <var>this</var>, <var>home</var>, <var>p</var>, <var>v</var> )</a></li><li><span class="item-toggle">◢</span><a href="#sec-operations-on-iterator-objects" title="Operations on Iterator Objects"><span class="secnum">2.2</span> Operations on Iterator Objects</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-getiteratordirect" title="GetIteratorDirect ( obj )"><span class="secnum">2.2.1</span> GetIteratorDirect ( <var>obj</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-getiteratorflattenable" title="GetIteratorFlattenable ( obj, stringHandling )"><span class="secnum">2.2.2</span> GetIteratorFlattenable ( <var>obj</var>, <var>stringHandling</var> )</a></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-control-abstraction-objects" title="Control Abstraction Objects"><span class="secnum">3</span> Control Abstraction Objects</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iteration" title="Iteration"><span class="secnum">3.1</span> Iteration</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iterator-objects" title="Iterator Objects"><span class="secnum">3.1.1</span> Iterator Objects</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iterator-constructor" title="The Iterator Constructor"><span class="secnum">3.1.1.1</span> The Iterator Constructor</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-iterator" title="Iterator ( )"><span class="secnum">3.1.1.1.1</span> Iterator ( )</a></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-properties-of-the-iterator-constructor" title="Properties of the Iterator Constructor"><span class="secnum">3.1.1.2</span> Properties of the Iterator Constructor</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-iterator.prototype" title="Iterator.prototype"><span class="secnum">3.1.1.2.1</span> Iterator.prototype</a></li><li><span class="item-toggle">◢</span><a href="#sec-iterator.from" title="Iterator.from ( O )"><span class="secnum">3.1.1.2.2</span> Iterator.from ( <var>O</var> )</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-wrapforvaliditeratorprototype-object" title="The %WrapForValidIteratorPrototype% Object"><span class="secnum">3.1.1.2.2.1</span> The %WrapForValidIteratorPrototype% Object</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-wrapforvaliditeratorprototype.next" title="%WrapForValidIteratorPrototype%.next ( )"><span class="secnum">3.1.1.2.2.1.1</span> %WrapForValidIteratorPrototype%.next ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-wrapforvaliditeratorprototype.return" title="%WrapForValidIteratorPrototype%.return ( )"><span class="secnum">3.1.1.2.2.1.2</span> %WrapForValidIteratorPrototype%.return ( )</a></li></ol></li></ol></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-iterator-helper-objects" title="Iterator Helper Objects"><span class="secnum">3.1.2</span> Iterator Helper Objects</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-%iteratorhelperprototype%-object" title="The %IteratorHelperPrototype% Object"><span class="secnum">3.1.2.1</span> The %IteratorHelperPrototype% Object</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-%iteratorhelperprototype%.next" title="%IteratorHelperPrototype%.next ( )"><span class="secnum">3.1.2.1.1</span> %IteratorHelperPrototype%.next ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-%iteratorhelperprototype%.return" title="%IteratorHelperPrototype%.return ( )"><span class="secnum">3.1.2.1.2</span> %IteratorHelperPrototype%.return ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-%iteratorhelperprototype%-@@tostringtag" title="%IteratorHelperPrototype% [ @@toStringTag ]"><span class="secnum">3.1.2.1.3</span> %IteratorHelperPrototype% [ @@toStringTag ]</a></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-iteratorprototype" title="Iterator.prototype"><span class="secnum">3.1.3</span> Iterator.prototype</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iteratorprototype.constructor" title="Iterator.prototype.constructor"><span class="secnum">3.1.3.1</span> Iterator.prototype.constructor</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-get-iteratorprototype-constructor" title="get Iterator.prototype.constructor"><span class="secnum">3.1.3.1.1</span> get Iterator.prototype.constructor</a></li><li><span class="item-toggle-none"></span><a href="#sec-set-iteratorprototype-constructor" title="set Iterator.prototype.constructor"><span class="secnum">3.1.3.1.2</span> set Iterator.prototype.constructor</a></li></ol></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.map" title="Iterator.prototype.map ( mapper )"><span class="secnum">3.1.3.2</span> Iterator.prototype.map ( <var>mapper</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.filter" title="Iterator.prototype.filter ( predicate )"><span class="secnum">3.1.3.3</span> Iterator.prototype.filter ( <var>predicate</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.take" title="Iterator.prototype.take ( limit )"><span class="secnum">3.1.3.4</span> Iterator.prototype.take ( <var>limit</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.drop" title="Iterator.prototype.drop ( limit )"><span class="secnum">3.1.3.5</span> Iterator.prototype.drop ( <var>limit</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.flatmap" title="Iterator.prototype.flatMap ( mapper )"><span class="secnum">3.1.3.6</span> Iterator.prototype.flatMap ( <var>mapper</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.reduce" title="Iterator.prototype.reduce ( reducer [ , initialValue ] )"><span class="secnum">3.1.3.7</span> Iterator.prototype.reduce ( <var>reducer</var> [ , <var>initialValue</var> ] )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.toarray" title="Iterator.prototype.toArray ( )"><span class="secnum">3.1.3.8</span> Iterator.prototype.toArray ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.foreach" title="Iterator.prototype.forEach ( fn )"><span class="secnum">3.1.3.9</span> Iterator.prototype.forEach ( <var>fn</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.some" title="Iterator.prototype.some ( predicate )"><span class="secnum">3.1.3.10</span> Iterator.prototype.some ( <var>predicate</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.every" title="Iterator.prototype.every ( predicate )"><span class="secnum">3.1.3.11</span> Iterator.prototype.every ( <var>predicate</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.find" title="Iterator.prototype.find ( predicate )"><span class="secnum">3.1.3.12</span> Iterator.prototype.find ( <var>predicate</var> )</a></li><li><span class="item-toggle">◢</span><a href="#sec-iteratorprototype-@@tostringtag" title="Iterator.prototype [ @@toStringTag ]"><span class="secnum">3.1.3.13</span> Iterator.prototype [ @@toStringTag ]</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-get-iteratorprototype-@@tostringtag" title="get Iterator.prototype [ @@toStringTag ]"><span class="secnum">3.1.3.13.1</span> get Iterator.prototype [ @@toStringTag ]</a></li><li><span class="item-toggle-none"></span><a href="#sec-set-iteratorprototype-@@tostringtag" title="set Iterator.prototype [ @@toStringTag ]"><span class="secnum">3.1.3.13.2</span> set Iterator.prototype [ @@toStringTag ]</a></li></ol></li></ol></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#updated-abstract-operations" title="Updated Abstract Operations"><span class="secnum">4</span> Updated Abstract Operations</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-createiteratorfromclosure" title="CreateIteratorFromClosure ( closure, generatorBrand, generatorPrototype [ , extraSlots ] )"><span class="secnum">4.1</span> CreateIteratorFromClosure ( <var>closure</var>, <var>generatorBrand</var>, <var>generatorPrototype</var> [ , <ins><var>extraSlots</var></ins> ] )</a></li></ol></li></ol></div></div><div id="spec-container"><h1 class="version">Stage 3 Draft / December 11, 2023</h1><h1 class="title">Iterator Helpers</h1>
+    </svg></div><div id="menu-spacer" class="menu-spacer"></div><div id="menu"><div id="menu-search"><input type="text" id="menu-search-box" placeholder="Search..."><div id="menu-search-results" class="inactive"></div></div><div id="menu-pins"><div class="menu-pane-header">Pins</div><ul id="menu-pins-list"></ul></div><div class="menu-pane-header">Table of Contents</div><div id="menu-toc"><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-well-known-intrinsic-objects" title="Well-Known Intrinsic Objects"><span class="secnum">1</span> Well-Known Intrinsic Objects</a></li><li><span class="item-toggle">◢</span><a href="#sec-abstract-operations" title="Abstract Operations"><span class="secnum">2</span> Abstract Operations</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-SetterThatIgnoresPrototypeProperties" title="SetterThatIgnoresPrototypeProperties ( this, home, p, v )"><span class="secnum">2.1</span> SetterThatIgnoresPrototypeProperties ( <var>this</var>, <var>home</var>, <var>p</var>, <var>v</var> )</a></li><li><span class="item-toggle">◢</span><a href="#sec-operations-on-iterator-objects" title="Operations on Iterator Objects"><span class="secnum">2.2</span> Operations on Iterator Objects</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-getiteratordirect" title="GetIteratorDirect ( obj )"><span class="secnum">2.2.1</span> GetIteratorDirect ( <var>obj</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-getiteratorflattenable" title="GetIteratorFlattenable ( obj, stringHandling )"><span class="secnum">2.2.2</span> GetIteratorFlattenable ( <var>obj</var>, <var>stringHandling</var> )</a></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-control-abstraction-objects" title="Control Abstraction Objects"><span class="secnum">3</span> Control Abstraction Objects</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iteration" title="Iteration"><span class="secnum">3.1</span> Iteration</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iterator-objects" title="Iterator Objects"><span class="secnum">3.1.1</span> Iterator Objects</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iterator-constructor" title="The Iterator Constructor"><span class="secnum">3.1.1.1</span> The Iterator Constructor</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-iterator" title="Iterator ( )"><span class="secnum">3.1.1.1.1</span> Iterator ( )</a></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-properties-of-the-iterator-constructor" title="Properties of the Iterator Constructor"><span class="secnum">3.1.1.2</span> Properties of the Iterator Constructor</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-iterator.prototype" title="Iterator.prototype"><span class="secnum">3.1.1.2.1</span> Iterator.prototype</a></li><li><span class="item-toggle">◢</span><a href="#sec-iterator.from" title="Iterator.from ( O )"><span class="secnum">3.1.1.2.2</span> Iterator.from ( <var>O</var> )</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-wrapforvaliditeratorprototype-object" title="The %WrapForValidIteratorPrototype% Object"><span class="secnum">3.1.1.2.2.1</span> The %WrapForValidIteratorPrototype% Object</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-wrapforvaliditeratorprototype.next" title="%WrapForValidIteratorPrototype%.next ( )"><span class="secnum">3.1.1.2.2.1.1</span> %WrapForValidIteratorPrototype%.next ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-wrapforvaliditeratorprototype.return" title="%WrapForValidIteratorPrototype%.return ( )"><span class="secnum">3.1.1.2.2.1.2</span> %WrapForValidIteratorPrototype%.return ( )</a></li></ol></li></ol></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-iterator-helper-objects" title="Iterator Helper Objects"><span class="secnum">3.1.2</span> Iterator Helper Objects</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-%iteratorhelperprototype%-object" title="The %IteratorHelperPrototype% Object"><span class="secnum">3.1.2.1</span> The %IteratorHelperPrototype% Object</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-%iteratorhelperprototype%.next" title="%IteratorHelperPrototype%.next ( )"><span class="secnum">3.1.2.1.1</span> %IteratorHelperPrototype%.next ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-%iteratorhelperprototype%.return" title="%IteratorHelperPrototype%.return ( )"><span class="secnum">3.1.2.1.2</span> %IteratorHelperPrototype%.return ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-%iteratorhelperprototype%-@@tostringtag" title="%IteratorHelperPrototype% [ @@toStringTag ]"><span class="secnum">3.1.2.1.3</span> %IteratorHelperPrototype% [ @@toStringTag ]</a></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#sec-iteratorprototype" title="Iterator.prototype"><span class="secnum">3.1.3</span> Iterator.prototype</a><ol class="toc"><li><span class="item-toggle">◢</span><a href="#sec-iteratorprototype.constructor" title="Iterator.prototype.constructor"><span class="secnum">3.1.3.1</span> Iterator.prototype.constructor</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-get-iteratorprototype-constructor" title="get Iterator.prototype.constructor"><span class="secnum">3.1.3.1.1</span> get Iterator.prototype.constructor</a></li><li><span class="item-toggle-none"></span><a href="#sec-set-iteratorprototype-constructor" title="set Iterator.prototype.constructor"><span class="secnum">3.1.3.1.2</span> set Iterator.prototype.constructor</a></li></ol></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.map" title="Iterator.prototype.map ( mapper )"><span class="secnum">3.1.3.2</span> Iterator.prototype.map ( <var>mapper</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.filter" title="Iterator.prototype.filter ( predicate )"><span class="secnum">3.1.3.3</span> Iterator.prototype.filter ( <var>predicate</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.take" title="Iterator.prototype.take ( limit )"><span class="secnum">3.1.3.4</span> Iterator.prototype.take ( <var>limit</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.drop" title="Iterator.prototype.drop ( limit )"><span class="secnum">3.1.3.5</span> Iterator.prototype.drop ( <var>limit</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.flatmap" title="Iterator.prototype.flatMap ( mapper )"><span class="secnum">3.1.3.6</span> Iterator.prototype.flatMap ( <var>mapper</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.reduce" title="Iterator.prototype.reduce ( reducer [ , initialValue ] )"><span class="secnum">3.1.3.7</span> Iterator.prototype.reduce ( <var>reducer</var> [ , <var>initialValue</var> ] )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.toarray" title="Iterator.prototype.toArray ( )"><span class="secnum">3.1.3.8</span> Iterator.prototype.toArray ( )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.foreach" title="Iterator.prototype.forEach ( fn )"><span class="secnum">3.1.3.9</span> Iterator.prototype.forEach ( <var>fn</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.some" title="Iterator.prototype.some ( predicate )"><span class="secnum">3.1.3.10</span> Iterator.prototype.some ( <var>predicate</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.every" title="Iterator.prototype.every ( predicate )"><span class="secnum">3.1.3.11</span> Iterator.prototype.every ( <var>predicate</var> )</a></li><li><span class="item-toggle-none"></span><a href="#sec-iteratorprototype.find" title="Iterator.prototype.find ( predicate )"><span class="secnum">3.1.3.12</span> Iterator.prototype.find ( <var>predicate</var> )</a></li><li><span class="item-toggle">◢</span><a href="#sec-iteratorprototype-@@tostringtag" title="Iterator.prototype [ @@toStringTag ]"><span class="secnum">3.1.3.13</span> Iterator.prototype [ @@toStringTag ]</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-get-iteratorprototype-@@tostringtag" title="get Iterator.prototype [ @@toStringTag ]"><span class="secnum">3.1.3.13.1</span> get Iterator.prototype [ @@toStringTag ]</a></li><li><span class="item-toggle-none"></span><a href="#sec-set-iteratorprototype-@@tostringtag" title="set Iterator.prototype [ @@toStringTag ]"><span class="secnum">3.1.3.13.2</span> set Iterator.prototype [ @@toStringTag ]</a></li></ol></li></ol></li></ol></li></ol></li><li><span class="item-toggle">◢</span><a href="#updated-abstract-operations" title="Updated Abstract Operations"><span class="secnum">4</span> Updated Abstract Operations</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-createiteratorfromclosure" title="CreateIteratorFromClosure ( closure, generatorBrand, generatorPrototype [ , extraSlots ] )"><span class="secnum">4.1</span> CreateIteratorFromClosure ( <var>closure</var>, <var>generatorBrand</var>, <var>generatorPrototype</var> [ , <ins><var>extraSlots</var></ins> ] )</a></li></ol></li></ol></div></div><div id="spec-container"><h1 class="version">Stage 3 Draft / December 12, 2023</h1><h1 class="title">Iterator Helpers</h1>
 <style>
   ins.block {
     font-weight: bold;
@@ -212,7 +212,7 @@ <h1><span class="secnum">3.1.2.1.1</span> %IteratorHelperPrototype%.next ( )</h1
 
         <emu-clause id="sec-%iteratorhelperprototype%.return">
           <h1><span class="secnum">3.1.2.1.2</span> %IteratorHelperPrototype%.return ( )</h1>
-          <emu-alg><ol><li>Let <var>O</var> be <emu-val>this</emu-val> value.</li><li>Perform ?&nbsp;<emu-xref aoid="RequireInternalSlot"><a href="https://tc39.es/ecma262/#sec-requireinternalslot">RequireInternalSlot</a></emu-xref>(<var>O</var>, [[UnderlyingIterator]]).</li><li><emu-xref href="#assert"><a href="https://tc39.es/ecma262/#assert">Assert</a></emu-xref>: <var>O</var> has a [[GeneratorState]] slot.</li><li>If <var>O</var>.[[GeneratorState]] is <emu-const>suspendedStart</emu-const>, then<ol><li>Set <var>O</var>.[[GeneratorState]] to <emu-const>completed</emu-const>.</li><li>NOTE: Once a generator enters the completed state it never leaves it and its associated <emu-xref href="#sec-execution-contexts"><a href="https://tc39.es/ecma262/#sec-execution-contexts">execution context</a></emu-xref> is never resumed. Any execution state associated with <var>O</var> can be discarded at this point.</li><li>Perform ?&nbsp;<emu-xref aoid="IteratorClose"><a href="https://tc39.es/ecma262/#sec-iteratorclose">IteratorClose</a></emu-xref>(<var>O</var>.[[UnderlyingIterator]], <emu-xref aoid="NormalCompletion"><a href="https://tc39.es/ecma262/#sec-normalcompletion">NormalCompletion</a></emu-xref>(<emu-const>unused</emu-const>)).</li><li>Return <emu-xref aoid="CreateIterResultObject"><a href="https://tc39.es/ecma262/#sec-createiterresultobject">CreateIterResultObject</a></emu-xref>(<emu-val>undefined</emu-val>, <emu-val>true</emu-val>).</li></ol></li><li>Let <var>C</var> be <emu-xref aoid="Completion"><a href="https://tc39.es/ecma262/#sec-completion-ao">Completion</a></emu-xref> { [[Type]]: <emu-const>return</emu-const>, [[Value]]: <emu-val>undefined</emu-val>, [[Target]]: <emu-const>empty</emu-const> }.</li><li>Return ?&nbsp;<emu-xref aoid="GeneratorResumeAbrupt"><a href="https://tc39.es/ecma262/#sec-generatorresumeabrupt">GeneratorResumeAbrupt</a></emu-xref>(<var>O</var>, <var>C</var>, <emu-val>"Iterator Helper"</emu-val>).</li></ol></emu-alg>
+          <emu-alg><ol><li>Let <var>O</var> be <emu-val>this</emu-val> value.</li><li>Perform ?&nbsp;<emu-xref aoid="RequireInternalSlot"><a href="https://tc39.es/ecma262/#sec-requireinternalslot">RequireInternalSlot</a></emu-xref>(<var>O</var>, [[UnderlyingIterator]]).</li><li><emu-xref href="#assert"><a href="https://tc39.es/ecma262/#assert">Assert</a></emu-xref>: <var>O</var> has a [[GeneratorState]] slot.</li><li>If <var>O</var>.[[GeneratorState]] is <emu-const>suspended-start</emu-const>, then<ol><li>Set <var>O</var>.[[GeneratorState]] to <emu-const>completed</emu-const>.</li><li>NOTE: Once a generator enters the completed state it never leaves it and its associated <emu-xref href="#sec-execution-contexts"><a href="https://tc39.es/ecma262/#sec-execution-contexts">execution context</a></emu-xref> is never resumed. Any execution state associated with <var>O</var> can be discarded at this point.</li><li>Perform ?&nbsp;<emu-xref aoid="IteratorClose"><a href="https://tc39.es/ecma262/#sec-iteratorclose">IteratorClose</a></emu-xref>(<var>O</var>.[[UnderlyingIterator]], <emu-xref aoid="NormalCompletion"><a href="https://tc39.es/ecma262/#sec-normalcompletion">NormalCompletion</a></emu-xref>(<emu-const>unused</emu-const>)).</li><li>Return <emu-xref aoid="CreateIterResultObject"><a href="https://tc39.es/ecma262/#sec-createiterresultobject">CreateIterResultObject</a></emu-xref>(<emu-val>undefined</emu-val>, <emu-val>true</emu-val>).</li></ol></li><li>Let <var>C</var> be <emu-xref aoid="Completion"><a href="https://tc39.es/ecma262/#sec-completion-ao">Completion</a></emu-xref> { [[Type]]: <emu-const>return</emu-const>, [[Value]]: <emu-val>undefined</emu-val>, [[Target]]: <emu-const>empty</emu-const> }.</li><li>Return ?&nbsp;<emu-xref aoid="GeneratorResumeAbrupt"><a href="https://tc39.es/ecma262/#sec-generatorresumeabrupt">GeneratorResumeAbrupt</a></emu-xref>(<var>O</var>, <var>C</var>, <emu-val>"Iterator Helper"</emu-val>).</li></ol></emu-alg>
         </emu-clause>
 
         <emu-clause id="sec-%iteratorhelperprototype%-@@tostringtag">