Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript JavaScript and the DOM Getting a Handle on the DOM Select an Element by ID

11,766 Points


Why wouldn't the querySelector method work? For instance, instead of document.getElementByID('headline'), use document.querySelector('headline') ?

1 Answer

document.getElementById('headline') is equivalent to document.querySelector('#headline'). The # specifies that 'headline' is an id. document.querySelector('headline') selects the first element with a <headline> tag, which is not a standard html tag. If the element with the id 'headline' has an <h1> tag and is the first h1 element on the page, you could select it using document.querySelector('h1').