- </svg></div><div id="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-scope" title="Scope"><span class="secnum">1</span> Scope</a></li><li><span class="item-toggle">◢</span><a href="#sec-properties-of-the-array-prototype-object" title="Properties of the Array Prototype Object (22.1.3)"><span class="secnum">2</span> Properties of the Array Prototype Object (22.1.3)</a><ol class="toc"><li><span class="item-toggle-none"></span><a href="#sec-array.prototype.groupby" title="Array.prototype.groupBy ( callbackfn [ , thisArg ] )"><span class="secnum">2.1</span> Array.prototype.groupBy ( <var>callbackfn</var> [ , <var>thisArg</var> ] )</a></li><li><span class="item-toggle-none"></span><a href="#sec-array.prototype.groupbymap" title="Array.prototype.groupByToMap ( callbackfn [ , thisArg ] )"><span class="secnum">2.2</span> Array.prototype.groupByToMap ( <var>callbackfn</var> [ , <var>thisArg</var> ] )</a></li><li><span class="item-toggle-none"></span><a href="#sec-add-value-to-keyed-group" title="AddValueToKeyedGroup ( groups, key, value )"><span class="secnum">2.3</span> AddValueToKeyedGroup ( <var>groups</var>, <var>key</var>, <var>value</var> )</a></li></ol></li><li><span class="item-toggle-none"></span><a href="#sec-copyright-and-software-license" title="Copyright & Software License"><span class="secnum">A</span> Copyright & Software License</a></li></ol></div></div><div id="spec-container"><h1 class="version">Stage 2 Draft / December 14, 2021</h1><h1 class="title">Array Grouping</h1>
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