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

Robert Booth
Robert Booth
2,290 Points
Posted by Robert Booth
Robert Booth
2,290 Points

Need help with this because I am completely lost.

I am unsure what to choose for this and would really like some help.

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.onchange = navigateToValue;
navigationSelect.onchange = 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

Ken Alger
STAFF
Ken Alger
Treehouse Teacher
Ken Alger
Ken Alger
Treehouse Teacher

Robert;

There is a JavaScript method to which you can pass arguments called addEventListener() and you could do something like:

navigationSelect.addEventListener("change", navigateToValue);

Post back if you are still stuck.

Happy coding,

Ken