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 jQuery Basics (2014) Creating a Mobile Drop Down Menu Getting a value

Chris Gutierrez
Chris Gutierrez
6,911 Points
Posted by Chris Gutierrez
Chris Gutierrez
6,911 Points

I just don't understand.

getting the inputed value is hard for me to understand. what am i doing wrong.

js/app.js 
//Select the input for the title for blog post.
var $titleInput = $("#title");

//Select the preview h1 tag
var $previewTitle = $("#titlePreview");

// Every second update the preview
var previewTimer = setInterval(updatePreview, 1000);

function updatePreview(){  
  //Get the user's input
  var titleValue;
  //Set the user input as the preview title. 
  $previewTitle.val($titleInput.text(titleValue));

}
index.html 
<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="theme.css">
</head>
<body>
  <div id="form">
    <label for="title">Blog Post Title</label><input id="title" name="title" value="" placeholder="Enter your blog title here">
  </div>
  <div id="preview">
    <h1 id="titlePreview"></h1>
  </div>
  <script src="//code.jquery.com/jquery-1.11.0.min.js" type="text/javascript" charset="utf-8"></script>
  <script src="js/app.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>
theme.css 
  #form {
    width: 45%;
    float: left;
  }
  #preview {
    width: 45%;
    float: right;
  }
  label {
    width: 20%;
    display: inline-block;
  }
  input {
    width: 70%;
  }

1 Answer

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

You're close but you have it turned around. The $previewTitle is supposed to be the output, so it needs to be $previewTitle.text("some text here") to set it. The value is in $titleInput, so it's $titleInput.val() to get it.

$previewTitle.text($titleInput.val()) ;

Or since there's a variable to store the input in:

function updatePreview(){  
  //Get the user's input
  var titleValue = $titleInput.text(titleValue);
  //Set the user input as the preview title. 
  $previewTitle.val(titleValue);

}