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 Working with jQuery Collections Stopping the Browser's Default Behavior

Holly Groves
Holly Groves
10,175 Points
Posted by Holly Groves
Holly Groves
10,175 Points

$pdfCheckbox

I'm not sure why the pdfCheckbox is not showing up in the browser for me. I'm using Firefox. Here's my code:

const $odd = $('a:odd'); const $secureLinks = $('a[href^="https://"]'); const $pdfs = $('a[href$=".pdf"]'); const $pdfCheckbox = $('<label><input type='checkbox'> Allow PDF downloads</label>');

$secureLinks.attr('target', '_blank'); $pdfs.attr('download', true);

$secureLinks.addClass('secure'); $pdfs.addClass('pdf');

$pdfs.on('click', function(event){ //check if checkbox has been checked //if zero checkboxes are checked if ($(':checked').length === 0) { //prevent download of document event.preventDefault(); //alert the user alert('Please check the box to allow PDF downloads.'); }

});

$('#links').append($pdfCheckbox);

<!DOCTYPE html> <html> <head> <title>jQuery Weekly</title> <link rel="stylesheet" href="css/style.css" type="text/css" media="screen" title="no title" charset="utf-8"> </head> <body> <div class="box"> <h1>jQuery Weekly</h1> <div id="links"> <ul> <li><a href='https://learn.jquery.com/'>Learn jQuery</a></li> <li><a href='http://treehouse-project-downloads.s3.amazonaws.com/jquery-basics/jquery_cheatsheet.pdf' download>jQuery Cheatsheet</a></li> <li><a href='https://api.jquery.com/'>jQuery Documentation</a></li> <li><a href='https://developer.mozilla.org/en-US/docs/Glossary/jQuery'>jQuery Glossary</a></li> </ul> </div> </div> <script src="js/jquery-3.2.1.min.js"></script> <script src="js/app.js"></script> </body> </html>

1 Answer

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

You have a syntax error caused by using the same type of quote to make a string that includes that type of quote.

There's two easy fixes:

// you can use a different type of quote character to enclose the string:
const $pdfCheckbox = $("<label><input type='checkbox'> Allow PDF downloads</label>");
// or you can "escape" the characters that would otherwise end the string:
const $pdfCheckbox = $('<label><input type=\'checkbox\'> Allow PDF downloads</label>');

When posting code in future, be sure to use Markdown formatting to preserve the code's appearance.