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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Getting and Setting Text with textContent and innerHTML

Rebecca Jensen
Rebecca Jensen
11,580 Points
Posted by Rebecca Jensen
Rebecca Jensen
11,580 Points

Can't change list description with button and EventListener

I'm going through this task a second time for review, and I can't get my code to change the description via an input and button, as shown in the video.

Here is my JavaScript:

const descriptionInput = document.querySelector('input.description');
const descriptionP = document.querySelector('p.description');
const descriptionButton = document.querySelector('button.description');

descriptionButton.addEventListener('click', () => {
  p.textContent = input.value + ':';                  
});

And my html:

<!DOCTYPE html>
<html>
  <head>
    <title>JavaScript and the DOM</title>
    <link rel="stylesheet" href="css/style.css">
  </head>
  <body>
    <h1 id="myHeading">JavaScript and the DOM</h1>
    <p>Making a web page interactive</p>    
    <button id="toggleList">Hide list</button>
    <div class="list">
      <p class="description">Things that are purple:</p>
      <input type="text" class="description">
      <button class="description">Change list description</button>
      <ul>
        <li>grapes</li>
        <li>amethyst</li>
        <li>lavender</li>
        <li>plums</li>
      </ul>
      <input type="text" class="addItemInput">
      <button class="addItemButton">Add item</button>
    </div>
    <script src="refresh.js"></script>
  </body>
</html>

Note that I did make a new .js file (and linked to it!) to practice. I have seen the new .js file successfully make changes to the html file, so I don't think linking is the issue.

1 Answer

Rebecca Jensen
Rebecca Jensen
11,580 Points
Rebecca Jensen
Rebecca Jensen
11,580 Points

Aha! I figured it out. I hadn't re-named the p and input within the formula, like I had when setting the variables.

const descriptionInput = document.querySelector('input.description');
const descriptionP = document.querySelector('p.description');
const descriptionButton = document.querySelector('button.description');

descriptionButton.addEventListener('click', () => {
  descriptionP.textContent = descriptionInput.value + ':';                  
});