Help with JavaScript: Novice To Ninja example

[dlbannerman]

Novice here. Working through JavaScript: Novice to Ninja and in Chapter 7 I’m in the Quiz Ninja Project. It has me adding the following to scripts.js:

// Event listeners
$start.addEventListener(‘click’, function() { play(quiz) } , false);

With all the other changes the console (Chrome) keeps reporting:

Uncaught TypeError: Cannot read property ‘addEventListener’ of null

I’ve even gotten the code off of https://github.com/spbooks/jsninja1/ and it gets the same error.

Thanks in advance for any assist.

[Mittineague]

Hi dlbannerman, welcome to the forum

The $start variable is assigned
var $start = document.getElementById("start");
and “start” is from index.htm

  <button id="start">Click to Start</button>
</body>
  <script src="js/scripts.js"></script>

if your index.htm file looks like that, try moving the script tag before the closing body tag like so

  <button id="start">Click to Start</button>
  <script src="js/scripts.js"></script>
</body>