Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript and the DOM (Retiring) Getting a Handle on the DOM Selecting by Id

Jaimin Patel
Jaimin Patel
9,020 Points
Posted by Jaimin Patel
Jaimin Patel
9,020 Points

Javascript and DOM work problem

Idk what I'm doing wrong I don't understand the directions and I have literally tried anything I can to make this work.

js/app.js 
const sayPhrase = document.getElementById(sayPhrase);
var button;
var input;


button.addEventListener('click', () => {
  alert(input.value);
});
index.html 
<!DOCTYPE html>
<html>
  <head>
    <title>Phrase Sayer</title>
  </head>
  <body>
    <p><input type="text" id="phraseText"></p>
    <p><button id="sayPhrase">Say Phrase</button></p>
    <script src="js/app.js"></script>
  </body>
</html>

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

You're close, but I see two issues:

  • the ID name must be enclosed in quotes when passing it to getElementById
  • the instructions say "assign it to the button variable", but this code assigns it to "sayPhrase" instead
Jaimin Patel
Jaimin Patel
9,020 Points
Jaimin Patel
Jaimin Patel
9,020 Points

I got it, Thank you for your help though.