Widget:CategoryPages

 <script type="text/javascript">
   (function() {
     const url = '/api.php?action=query&list=categorymembers&cmtitle=Category:Tools and Equipment in Electronics Area&format=json';
     fetch(url).then(function(response) {
       return response.json();
     }).then(function(data) {
       console.log(data);
     }).catch(function(err) {
       console.log('Fetch Error :-S', err);
     });
   })();
 </script>