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JavaScript Interactive Web Pages with JavaScript Traversing and Manipulating the DOM with JavaScript Adding Multiple Event Listeners

Posted by Kevin Anderson
Kevin Anderson
14,569 Points

I am fairly certain I am doing this correctly, but would like to confirm. It tells me that I do not have change,,,

added to the event listener

app.js 
//Select select box
var navigationSelect = document.getElementById("nav");

//Navigate to URL when select box is changed
var navigateToValue = function() {
  window.location = this.value;
}

//Send analytics data
var sendAnalytics = function() {
  //Placeholder  
}

navigationSelect.addEventListener = ('change', navigateToValue);
navigationSelect.addEventListener = ('change', sendAnalytics);
index.html 
<!DOCTYPE html>
<html>
  <body>
    <select id="nav">
      <option value="index.html">Home</option>
      <option value="about.html">About</option>
    </select>
    <h1>Home</h1>
    <script src="app.js"></script>
  </body>
</html>
about.html 
<!DOCTYPE html>
<html>
  <body>
    <select id="nav">
      <option value="index.html">Home</option>
      <option value="about.html">About</option>
    </select>
    <h1>About</h1>
    <script src="app.js"></script>
  </body>
</html>

1 Answer

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Kevin,

addEventListener is a method you're passing arguments into so you don't need those equal signs.

Kevin Anderson
Kevin Anderson
14,569 Points

Thanks