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JavaScript Interactive Web Pages with JavaScript Traversing and Manipulating the DOM with JavaScript Traversing Elements

Posted by mark pollard
mark pollard
6,079 Points

challenge says lists items is wrong to make it the children of the navigation ul. tried everything just learned

any help

app.js 
//Select the naviagation
var navigation = document.getElementById("navigation");

//Select all listItems from the navigation
if(navigation.children.length) {
  var children = navigation.children;
  for (var i = 0; i < children.length; i++)
)



//When a navigation link is pressed
var linkListener = function() {
  console.log("Listener is clicked!");
}

var bindEventsToLinks = function(listItem) {
  //Select the anchor
  var anchor = listItem;
  //Bind the linkListener to the anchor element (a) 
  anchor.onclick = linkListener;
}

for(var i = 0; i < listItems.length ; i++) {
    bindEventsToLinks(listItems[i]);
}
index.html 
<!DOCTYPE html>
<html>
<head></head>
<body>

<ul id="navigation">
  <li>
    <a href="#home">Home</a>
  </li>
  <li>
    <a href="#about">About</a>
  </li>
  <li>    
    <a href="#contact">Contact</a>
  </li>
</ul>

<p>A few of my favourite things:</p>
<ul>
  <li>
    Rain drops on roses
  </li>
  <li>
    Whiskers on kittens
  </li>
  <li>
    Brown paper packages wrapped up with string
  </li>
</ul>

<script src="app.js"></script>
</body>
</html>
mark pollard
mark pollard
6,079 Points

var listitems = navigation; was on line 5 when challenge began

1 Answer

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,860 Points
Jason Anders
Jason Anders
Treehouse Moderator 145,860 Points

Hey Mark, For Task 1, your line 5 is correct, but you added an if statement and a for loop that is not needed (or asked for by the challenge). var listItems = navigation.children; selects the children as the challenge asked. If you restart the challenge to clear out the code, and just change line 5 to above, Task 1 will pass.

For Task 2, the challenge just wants you to use a method to select the a elements in the unordered list. So line 14 should become var anchor = listItem.querySelector("a");

This part of the JavaScript course is kind of confusing as it covers much. I actually watched the videos a couple times, and I am still not fully comfortable. Just keep at it!

I hope this helped. Keep Coding! :)

mark pollard
mark pollard
6,079 Points

thanks ill give it a try