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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Removing an Element from the DOM

Posted by Hanwen Zhang
Hanwen Zhang
20,084 Points

Why my code is not working?

please help

app.js 
var myList = document.querySelector('ul');
var firstListItem = document.querySelector('#first');

firstListItem.removeChild('li');
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>DOM Manipulation</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <ul>
            <li id="first">First Item</li>
            <li id="second">Second Item</li>
            <li id="third">Third Item</li>
        </ul>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Peter Vann
Peter Vann
36,427 Points

Hi Hanwen!

These two lines are correct and pass (the first two tasks, obviously):

var myList = document.querySelector('ul');
var firstListItem = document.querySelector('#first');

You are correctly targeting the two elements as directed.

This is not correct though:

firstListItem.removeChild('li');

The hint is that you are using removeChild, which implies a parent-child relationship.

So this makes more sense (and passes the 3rd task):

myList.removeChild( firstListItem );

Because myList is the list itself and the child you want to remove from that list is the element assigned to the variable firstListItem.

Does that make sense?

I hope that helps.

Stay safe and happy coding!

Hanwen Zhang
Hanwen Zhang
20,084 Points

Thank you, Peter. It makes sense!