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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM DOM Manipulation

Alexandra Edwards
Alexandra Edwards
4,686 Points
Posted by Alexandra Edwards
Alexandra Edwards
4,686 Points

How do I set the class of a variable in JavaScript?

I am stuck on task 2 of 3 in the section on DOM manipulating.

app.js 
const contentDiv = document.getElementById("content");
let newParagraph = document.createElement('p').className = 'panel';
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>DOM Manipulation</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <div id="content">

        </div>
        <script src="app.js"></script>
    </body>
</html>

2 Answers

zainsra7
zainsra7
3,237 Points

Hi,

Here's the solution : 

const contentDiv = document.getElementById("content");
let newParagraph = document.createElement('p');
newParagraph.className = 'panel';

You just need to set the className in the next line, your approach is also good but Treehouse doesn't evaluate performing this challenge task the way you did.

and for the next Task it asks you to append the newParagraph to contentDiv, so simply use appendChild() method on contentDiv.

const contentDiv = document.getElementById("content");
let newParagraph = document.createElement('p');
newParagraph.className = 'panel';
contentDiv.appendChild(newParagraph);

I hope it answers your question, Happy Coding :)

-Zain

Jason Myers
Jason Myers
6,443 Points

thank you very much dude, this had me seriously stuck !!

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
const contentDiv = document.getElementById("content");
let newParagraph = document.createElement('p').className = 'panel'; // so close, className is not a function
//hence you cannot do that way in JavaScript
//simply retreive the className attribute from newParagraph, and assign it to panel,
//just as you assign to a variable