test-bundle.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Bundler tests</title>
    <style>
      pre {
        margin: 0.5rem 0;
      }

      pre.header {
        background: #ddd;
        margin-top: 1.5rem;
        padding: 0.25rem 0.75rem;
      }
    </style>
  </head>
  <body>
    <script>
      function log (label, result) {
        const pre = document.createElement('pre');

        if (typeof result !== 'undefined') {
          pre.innerHTML = `${label.padStart(24)} = ${result}`;
        } else {
          pre.innerHTML = label;
          pre.className = 'header';
        }

        document.body.appendChild(pre);
      }
    </script>
    <script src="node_modules/@polkadot/util/bundle-polkadot-util.js"></script>
    <script src="node_modules/@polkadot/util-crypto/bundle-polkadot-util-crypto.js"></script>
    <script src="node_modules/@polkadot/keyring/bundle-polkadot-keyring.js"></script>
    <script src="packages/types/build/bundle-polkadot-types.js"></script>
    <script>
      log('polkadotTypes');

      const { TypeRegistry } = polkadotTypes;
      const registry = new TypeRegistry();

      log('createType', registry.createType('Balance', 1234567890).toHuman());
    </script>
    <script src="packages/api/build/bundle-polkadot-api.js"></script>
    <script>
      log('polkadotApi');

      const { ApiPromise, WsProvider } = polkadotApi;
      const provider = new WsProvider('wss://rpc.polkadot.io');

      ApiPromise
        .create({ provider })
        .then((api) =>
          // use the derive version, checking that that also works
          api.derive.chain.subscribeNewHeads((h) =>
            log(polkadotUtil.formatNumber(h.number.unwrap()), h.hash.toHex())
          )
        );
    </script>
  </body>
</html>