Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by jclaurent2
.a{fill-rule:evenodd;}techdegree
jclaurent2
Front End Web Development Techdegree Student 10,899 Points

Any idea to crack the child challenge

Can't crack it

app.js 
var section = document.querySelector('section');
var paragraphs = section.children;

for (i = 0; i <= paragraphs.length; i++) {

  paragraphs[i].style.color = 'blue';
}
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; 2019</p> 
        </footer>
        <script src="app.js"></script>
    </body>
</html>

2 Answers

Martin Sole
Martin Sole
82,199 Points
Martin Sole
Martin Sole
82,199 Points

Hi

It looks like 'i' hasn't been defined in the for loop you need use let before i. Also you want to the loop to check if i is less than paragraphs.length rather than less than or equal to .

jclaurent2
seal-mask
.a{fill-rule:evenodd;}techdegree
jclaurent2
Front End Web Development Techdegree Student 10,899 Points
jclaurent2
.a{fill-rule:evenodd;}techdegree
jclaurent2
Front End Web Development Techdegree Student 10,899 Points

thks