title: How do I get the selected rows from a v-data-table? (Vuetify)
body: <p>I am using a v-data-table, with the option "show-select", which shows checkboxes behind every row, but I have no idea how to actually know which rows are checked and get their values...</p>
  
  <p>This is the code </p>
  
  <pre><code>&lt;v-data-table
     :headers="TopicHeaders"
     :items="allTopics"
     :search="searchTopics"
     show-select
     class="elevation-1"
     item-key="name"
  &gt;&lt;/v-data-table&gt;
  </code></pre>
  
  <p>Thank you</p>