替换html文档中的Javascript值

I have the following code in the javascript of an html document where there is a list called data where it contains a list of files. I want to change this list by periodically updating it. Is there a way I can access it and change its content through a click of a button?

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <link rel="stylesheet" type="text/css" href="mirador-2.6.1/css/mirador-combined.css">
  <title>Mirador Viewer</title>
  <style type="text/css">
    body { padding: 0; margin: 0;}
    #viewer {width: 100%; height: 100%; position: fixed; }
  </style>
  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.4.1/css/all.css" integrity="sha384-5sAR7xN1Nv6T6+dT2mhtzEpVJvfS3NScPQTrOxhwjIuvcA67KV2R5Jz6kr4abQsz" crossorigin="anonymous"/>
  
</head>
<body>
  <div id="viewer"></div>
  <script src="mirador-2.6.1/mirador.js"></script>
  <script type="text/javascript">
    
    $(function() {
    var uri = window.location.toString();
    var href = uri.split('id=')[1];
            
      Mirador({
    
        "id": "viewer",
        "layout": "1x1",
          "mainMenuSettings" :
          {


                "show": true,
                "userLogo": {"label": "IIIF", "attributes": {"href": "http://iiif.io"}},
             
          },
          'showAddFromURLBox' : true,
          "saveSession": true,
        "data": [
        { "manifestUri": "http://localhost:3001/api/manifests/R494Vol1", "location": 'Notarial Archives Valletta'},
         { "manifestUri": "http://localhost:3001/api/manifests/MS588", "location": 'Notarial Archives Valletta'}
    
        ],
        "windowObjects": [{
          "loadedManifest" : "http://localhost:3001/api/manifests/"+href, 
          "viewType" : "ImageView"}],
          /** Testing Annotations **/
          
          annotationEndpoint: {
                name: 'Simple Annotation Store Endpoint',
                module: 'SimpleASEndpoint',
                options: {
                    url: 'annotation',
                  storeId: 'comparison',
                  APIKey: 'user_auth'
                }
          }
      });
    
    });
    
  </script>
</body>
</html>

</div>