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) Making Changes to the DOM Modifying Elements

Emily DeWitt
Emily DeWitt
4,210 Points
Posted by Emily DeWitt
Emily DeWitt
4,210 Points

How do I select an <input> element with a certain ID name?

I assume I should use getElementByID() but I don't know how to format the values inside the parentheses.

2 Answers

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

The argument to getElementById() (note: lower-case "d") would be a string containing the ID name of the element you want to select. The string can be in a variable, or it can be a literal string in quotes.

Dehn Hunsworth
Dehn Hunsworth
7,189 Points
Dehn Hunsworth
Dehn Hunsworth
7,189 Points

document.querySelector("#<id>");

is a good option as well, just need to have the '#' in this one where above example does not.