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JavaScript jQuery Basics (2014) Creating a Simple Lightbox Adding New Attribute Values with attr()

Posted by SuneethaRani Savaram
.a{fill-rule:evenodd;}techdegree
SuneethaRani Savaram
Front End Web Development Techdegree Student 3,302 Points

Jquery

$external = $(this); $external.attr(target);

whats wrong in this? can you pls tell me how my code will be?

js/app.js 
$external = $(this);
$external.attr(target)
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>Links Page</title>
</head>
<body>
  <h1>Links</h1>
  <ul>
    <li><a href="http://google.com" class="external">Google</a></li>
    <li><a href="http://yahoo.com" class="external">Yahoo</a></li>
  </ul>
  <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>

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

SPOILER ALERT:exclamation: (:see_no_evil:)

OK, with that out of the way, let's dissect the challenge. It's asking you to add to all links with the class "external", the target attribute with the value of "_blank". So what's a link? It's an a tag, right? So a JQuery selector for links having the class "external" would be $("a.external").

You knew that .attr() is the JQuery function to add an attribute, but it takes two arguments, the attribute name and value. We know the attribute name needs to be "target", and we want the value to be "_blank".

So a one-liner in JQuery that would set this attribute on all matching links would be:

js/app.js 
$("a.external").attr("target", "_blank");
SuneethaRani Savaram
.a{fill-rule:evenodd;}techdegree
SuneethaRani Savaram
Front End Web Development Techdegree Student 3,302 Points

Thank You Very Much Steven