example/index.html

<!DOCTYPE html>
<html>
  <head>
    <title>NoSleep.js - Simple Test Page</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
  </head>
  <body>
    <h1>NoSleep Test Page</h1>
    <script src="../dist/NoSleep.min.js"></script>

    <input type="button" id="toggle" value="Wake Lock is disabled" />

    <script>
      var noSleep = new NoSleep();

      var wakeLockEnabled = false;
      var toggleEl = document.querySelector("#toggle");
      toggleEl.addEventListener('click', function() {
        if (!wakeLockEnabled) {
          noSleep.enable(); // keep the screen on!
          wakeLockEnabled = true;
          toggleEl.value = "Wake Lock is enabled";
          document.body.style.backgroundColor = "green";
        } else {
          noSleep.disable(); // let the screen turn off.
          wakeLockEnabled = false;
          toggleEl.value = "Wake Lock is disabled";
          document.body.style.backgroundColor = "";
        }
      }, false);
    </script>

    <!-- Github Ribbon -->
    <a href="https://github.com/richtr/NoSleep.js"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/365986a132ccd6a44c23a9169022c0b5c890c387/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f7265645f6161303030302e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png"></a>
  </body>
</html>