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

For Loop ---- ReferenceError: i is not defined

Can someone see what I am doing wrong in this for loop? I'm getting an error "ReferenceError: i is not defined"

************HERE IS THE QUESTION******************** Challenge Task 2 of 2 Next, change the color of each child paragraph to blue.

(Remember: paragraphs is a collection of elements, so you'll first need to use a loop to access each element in the collection.)

**********HERE IS THE JS**********************

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

for (i = 0; i < paragraphs.length; i += 1) { paragraphs[i].style.color = 'blue'; };

***********HERE IS THE 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>© 2019</p> </footer> <script src="app.js"></script> </body> </html>

1 Answer

Blake Larson
Blake Larson
13,014 Points

Just have to declare the i.

for (let i = 0; i < paragraphs.length; i += 1) { paragraphs[i].style.color = 'blue'; };

Thanks Blake Larson