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JavaScript jQuery Basics (2014) Creating a Simple Lightbox Creating and Appending Detached DOM elements

Hamed Ali
Hamed Ali
5,626 Points
Posted by Hamed Ali
Hamed Ali
5,626 Points

Display a modal. There should be a button to close the modal. Anyone know why dismiss button isn't working?

Here is the error message: The last element in the modal is the placeholder, not the button. Did you use append() to append the button to the modal?

js/app.js 
//Create the Modal
var $modal = $("<div id='modal'></div>");

//Create a placeholder for text in the modal
var $placeHolder = $("<p id='placeHolder'></p>");
$modal.append($placeHolder);

//Create a button to dismiss modal and add it to modal
var $dismissButton = $("<button>Dismiss</button>");

//Hide modal when button is pressed
$dismissButton.click(function(){
  $modal.hide(300);
});

$("body").append($modal);

//A function to show a modal
function displayModal(message) {
  $placeHolder.text(message);
  $modal.show();
}

//Show an example modal
displayModal("Hello World!");
index.html 
<!DOCTYPE html>
<html>
<head>
    <link rel="stylesheet" href="css/style.css" type="text/css" media="screen" title="no title" charset="utf-8">
    <title>Modal Example</title>
</head>
<body>
    <h1>Modal Example Page</h1>

    <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>

3 Answers

Hamed Ali
Hamed Ali
5,626 Points
Hamed Ali
Hamed Ali
5,626 Points

well I had written:

$("body").append($dismissButton);

and placed it right after the $("body").append($modal); .... This should have worked - and I tried to place it in a few different place but no luck. Im probably doing a very small silly thing.

Also tried $dismissButton.show(); in the displayModal function but also no luck. (That would not have worked anyways.

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

It's not the document body that the button should be added to.

The challenge says the button should be added to the modal ($modal).

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

You say this worked:

$($modal).append($dismissButton);//HERE IS THE CODE

But since $modal is already a jQuery object, you really only need this:

$modal.append($dismissButton);
mikkel pohjola
mikkel pohjola
1,966 Points
mikkel pohjola
mikkel pohjola
1,966 Points

i didt it like this and that work

          <p>//Create the Modal
var $modal = $("<div id='modal'></div>");

//Create a placeholder for text in the modal
var $placeHolder = $("<p id='placeHolder'></p>");
$modal.append($placeHolder);

//Create a button to dismiss modal and add it to modal
var $dismissButton = $("<button>Dismiss</button>");

//Hide modal when button is pressed
$dismissButton.click(function(){
  $modal.hide(300);

});
$($modal).append($dismissButton);//HERE IS THE CODE
$("body").append($modal);

//A function to show a modal
function displayModal(message) {
  $placeHolder.text(message);
  $modal.show();
}

//Show an example modal
displayModal("Hello World!");</p>
          ```
mikkel pohjola
mikkel pohjola
1,966 Points
mikkel pohjola
mikkel pohjola
1,966 Points

it makes sense, even though it did the other: D