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) Getting a Handle on the DOM Selection Review

Sarah Breidenbach
Sarah Breidenbach
4,490 Points

Why is my answer to the review question on selecting the body element using document.getElementsByTagName wrong?

The question is "How would you select the body element using document.getElementsByTagName, and store it in the variable body?"

And you're given const body = __________

Shouldn't the answer be const body = document.getElementsByTagName('body');

2 Answers

Kieran Barker
Kieran Barker
15,028 Points

You’d need to add [0] to the end, because getElementsByTagName returns an HTMLCollection β€” even though there’s only one body element :)

To the end of what?

Kieran Barker
Kieran Barker
15,028 Points

Like this, Andrew:

const body = document.getElementsByTagName('body')[0];

Thanks