Method ya JavaScript Map.groupBy()

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"ok" : "low"; } // 根据数量分组 const result = Map.groupBy(fruits, myCallback); </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=jsref_map_groupby">亲自试一试</a></p> </section> <section class="note"> <h2>注意</h2> <p>原始对象和返回对象中的元素是相同的。</p> <p>对任一对象的更改都会反映在另一个对象中。</p> </section> <section> <h2>Inafikia kwa Object.groupBy() na Map.groupBy()</h2> <p><code>Object.groupBy()</code> na <code>Map.groupBy()</code> Inafikia kwa:</p> <p><code>Object.groupBy()</code> Kugawaza elementi kwa kina kiwango cha JavaScript.</p> <p><code>Map.groupBy()</code> Kugawaza elementi kwa kina kiwango cha Map.</p> </section> <section> <h2>Makusanyiko ya lugha</h2> <pre class="language-js"> Map.groupBy(<i>iterable</i>, <i>callback</i>) </pre> <h3>Makusanyiko ya andiko</h3> <table class="parameter"> <tr> <th style="width: 25%;">Makusanyiko ya andiko</th> <th>Kueleza</th> </tr> <tr> <td><i>iterable</i></td> <td>Inayotambulika. Mtaani wa kuelewa ama Map.</td> </tr> <tr> <td><i>callback</i></td> <td> <p>Inayotambulika. Funguo inayotendeka kwa kila elementi.</p> <p>Funguo inayoweza kutoweka jina la kugawaza ya kinaelementi.</p> </td> </tr> </table> <h3>Mwongozo wa kutoweka</h3> <table class="technical-details"> <tr> <th style="width: 25%;">Aina</th> <th>Kueleza</th> </tr> <tr> <td>Object</td> <td>Ina kiwango cha kipakana cha Map kina mifumo ya kugawaza.</td> </tr> </table> </section> <section> <h2>Mfumo wa kifungu cha kawaida</h2> <p><code>Map.groupBy()</code> Ina jina la ES2024.</p> <p>Kuanza 2024 mwezi wa Machi, barani kila programu ya kifungu cha kawaida zinaongoza kufaa kote:</p> <table class="browser-support"> <tr> <th class="bsChrome">Chrome</th> <th class="bsEdge">Edge</th> <th class="bsFirefox">Firefox</th> <th class="bsSafari">Safari</th> <th class="bsOpera">Opera</th> </tr> <tr> <td>Chrome 117</td> <td>Edge 117</td> <td>Firefox 119</td> <td>Safari 17.4</td> <td>Opera 103</td> </tr> <tr> <td>Mwezi wa Septemba 2023</td> <td>Mwezi wa Septemba 2023</td> <td>Mwezi wa Oktoba 2023</td> <td>Mwezi wa Oktoba 2024</td> <td>Mwezi wa Mei 2023</td> </tr> </table> </section> <div class="prenextnav-ref"> <ul> <li> Rejea kweli <a href="/sw/jsref/jsref_map_get.html" title="Method ya get() ya Map ya JavaScript">Get()</a></li> <li> Pya ja <a href="/sw/jsref/jsref_map_has.html" title="Method ya has() ya Map ya JavaScript">has()</a></li> <li> Rejea kwa ukweli <a href="/sw/jsref/jsref_obj_map.html" title="Kitabu cha Kuelewa cha JavaScript Map">Kitabu cha Kuelewa cha JavaScript Map</a></li> </ul> </div><div style="background-color:#fcfdf8; padding:0;"> </div> </div>  <div id="sidebar"> <div><h3><center> Kifaa cha kutosha </center><h3> <h5 id="tools_reference"><a href="/sw/jsref/index.html">Kitabu cha Kuelewa cha JavaScript na HTML DOM</a></h5> <h5 id="tools_example"><a href="/sw/js/js_examples.html">Mifano ya JavaScript</a></h5> <h5 id="tools_quiz"><a href="/sw/js/js_quiz.html">Imitaa ya JavaScript</a></h5> <h5 id="tools_tutorial"><a href="/sw/js/index.html">Makala ya JavaScript</a></h5> </div> <div><h3><center> Mtaguso wa msingi </center><h3> <div id="sbtg"> <script src="/myjs/zzsr.js"></script> </div> </div> </div> <div id="footer"> <p id="p1"> Matokeo ya CodeW3C.com inaonyesha kwa ajili ya mafunzo na mazoezi, bila kufikiria kwamba matokeo hii ni kawaida. 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