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JavaScript jQuery Basics (2014) Creating a Mobile Drop Down Menu Using parent(), hasClass() and prop()

Posted by Chase Prescott
Chase Prescott
10,109 Points

Help please

On line 15 of app.js, I am trying to see if the parent of the link has the class of '.selected' but it isn't working.

js/app.js 
//Problem: It look gross in smaller browser widths and small devices
//Solution: To hide the text links and swap them out with a more appropriate navigation

//Create a select and append to #menu
var $select = $("<select></select>");
$("#menu").append($select);

//Cycle over menu links
$("#menu a").each(function(){
  var $anchor = $(this);
  //Create an option
  var $option = $("<option></option>");

  //Deal with selected options depending on current page
  if($anchor.parent().hasClass(".selected")) {
    $option;
  }
  //option's value is the href
  $option.val($anchor.attr("href"));
  //option's text is the text of link
  $option.text($anchor.text());
  //append option to select
  $select.append($option);
});
//Create button 
var $button = $("<button>Go</button>");
$("#menu").append($button);
//Bind click to button
$button.click(function(){
  //Go to select's location
  window.location = $select.val();
});
index.html 
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="css/style.css" type="text/css" media="screen" title="no title" charset="utf-8">
</head>
<body>
    <div id="menu">
        <ul>
            <li class="selected"><a href="index.html">Home</a></li>
            <li><a href="about.html">About</a></li>
            <li><a href="contact.html">Contact</a></li>
            <li><a href="support.html">Support</a></li>
            <li><a href="faqs.html">FAQs</a></li>
            <li><a href="events.html">Events</a></li>
        </ul>
    </div>
    <h1>Home</h1>
    <p>This is the home page.</p>
    <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>

2 Answers

Joshua Adam
Joshua Adam
3,445 Points
Joshua Adam
Joshua Adam
3,445 Points

On line 15, remove the period from '.selected' to change it to 'selected'. You don't need dots to check for a class, to add a class, or to remove a class.

//Deal with selected options depending on current page
  if($anchor.parent().hasClass("selected")) {
    $option;
  }
Aaron Kaye
Aaron Kaye
10,948 Points
Aaron Kaye
Aaron Kaye
10,948 Points

.hasClass("") only needs the class name, not the period. So try:

if($anchor.parent().hasClass("selected")) {