HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>IndexedDB Delete Demo</title>
  <style>
    body { font-family: system-ui, sans-serif; margin: 1.5rem; line-height: 1.5; }
    button { padding: 0.5rem 0.9rem; cursor: pointer; }
    #status { margin-top: 1rem; }
  </style>
</head>
<body>
  <h1>IndexedDB Delete</h1>
  <button type="button" id="deleteBtn" disabled>Delete id 1</button>
  <p id="status">Opening&hellip;</p>

  <script>
    var statusEl = document.getElementById('status');
    var deleteBtn = document.getElementById('deleteBtn');
    var db;

    var openReq = indexedDB.open('tryitDeleteDemoPage', 1);

    openReq.onupgradeneeded = function (event) {
      event.target.result.createObjectStore('items', { keyPath: 'id' });
    };

    openReq.onsuccess = function (event) {
      db = event.target.result;
      var tx = db.transaction(['items'], 'readwrite');
      tx.objectStore('items').put({ id: 1, value: 'Sample' });
      tx.oncomplete = function () {
        statusEl.textContent = 'Ready. Click Delete.';
        deleteBtn.disabled = false;
      };
    };

    openReq.onerror = function () {
      statusEl.textContent = 'Could not open the database.';
    };

    deleteBtn.addEventListener('click', function () {
      var tx = db.transaction(['items'], 'readwrite');
      var req = tx.objectStore('items').delete(1);
      req.onsuccess = function () {
        statusEl.textContent = 'Record id 1 deleted.';
      };
      req.onerror = function () {
        statusEl.textContent = 'Error: ' + req.error.message;
      };
    });
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

IndexedDB Delete — Complete HTML Demo