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JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Child Traversal

Posted by Tom Kaufman
Tom Kaufman
5,130 Points

Selecting <p> elements from a stored DOM element.

The error message I'm getting says I should be using the .children attribute. I tried that but I don't know how to filter the children to just those elements that are <p>.

app.js 
const section = document.querySelector('section');
let paragraphs=section.getElementsByTagName('p') ;
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>Child Traversal</title>
    </head>
    <body>
        <section>
            <p>This is the first paragraph</p>
            <p>This is a slightly longer, second paragraph</p>
            <p>Shorter, last paragraph</p>
        </section>
        <footer>
            <p>&copy; 2016</p> 
        </footer>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Jennifer Nordell
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STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! jQuery has an implementation of this that will allow you to insert a filter onto the .children and filter for paragraph. But I'm unable to find anything in the MDN documentation that shows how to filter based on a tag name with plain JavaScript.

In regards to this challenge, it might be interesting to note that if you check the index.html you'll see that the only children of the <section> are indeed paragraphs. There's absolutely no need to filter :smiley:

Hope this helps! :sparkles:

Tom Kaufman
Tom Kaufman
5,130 Points

Cool. I see that now.