Javascript 如何从该响应中获取href？

我有一些代码，其中我得到div类的第一个子类的响应，我想从我的第一个变量得到993307。我怎么做

<a href="https://osu.ppy.sh/beatmapsets/993307/discussion#/1050967" title="MIIRO (TV Size) - AKINO from bless4 (mapped by Sotarks)">

这是第一个变量的响应

---

这就是你要找的吗

var href = $(first).find('a').first().attr('href');
var matches = href.match(/\/(\d+)\//);

if (matches[1]) {
    console.log(matches[1]);
}

---

假设您的响应是字符串。使用DomParser 让响应='被取消资格。原因：[无预览]。2019年7月3日下午3:17:20 UTC' var parser=新的DOMParser；//启动DomParser var data=parser.parseFromStringresponse，“text/html”； 让atagLink=data.querySelectora.getAttributehref//获取a标记的href属性

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console.logatagLink.match/\d+/[0]//与regex匹配它是字符串吗？还是html节点？

<div class="beatmapset-event">
  <a href="https://osu.ppy.sh/beatmapsets/993307/discussion#/1050967" title="
                   MIIRO (TV Size) - AKINO from bless4
                   (mapped by Sotarks)
               ">
    <img class="beatmapset-activities__beatmapset-cover" src="https://assets.ppy.sh/beatmaps/993307/covers/list.jpg?1562167122" srcset="https://assets.ppy.sh/beatmaps/993307/covers/list.jpg?156216712
2 1x, https://assets.ppy.sh/beatmaps/993307/covers/list@2x.jpg?1562167122 2x">
  </a>
  <div class="beatmapset-event__icon beatmapset-event__icon--disqualify beatmapset-activities__event-icon-spacer"></div>
  <div>
    <div class="beatmapset-event__content">
      Disqualified by <a class="user-name js-usercard" data-user-id="3388410" href="https://osu.ppy.sh/users/3388410" style="color: #6B3FA0">eiri-</a>. Reason: <a href="https://osu.ppy.sh/beatmapsets/9
93307/discussion#/1050967">#1050967</a> ([no preview]).
    </div>
    <div><time class="timeago" datetime="2019-07-03T15:17:20+00:00">July 3, 2019 at 3:17:20 PM UTC</time></div>
  </div>
</div>

var href = $(first).find('a').first().attr('href');
var matches = href.match(/\/(\d+)\//);

if (matches[1]) {
    console.log(matches[1]);
}