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 Selecting Multiple Elements

Julianna Kahn
Julianna Kahn
20,702 Points
Posted by Julianna Kahn
Julianna Kahn
20,702 Points

I am totally confused by the different document element references

The last video talked about queries and nth-child. Does this challenge have anything to do with that?

js/app.js 
var listItems = document.getElementById('rainbow');
var colors = ["#C2272D", "#F8931F", "#FFFF01", "#009245", "#0193D9", "#0C04ED", "#612F90"];

for(var i = 0; i < colors.length; i ++) {
  listItems[i].style.color = colors[i];    
}
index.html 
<!DOCTYPE html>
<html>
  <head>
    <title>Rainbow!</title>
  </head>
  <body>
    <ul id="rainbow">
      <li>This should be red</li>
      <li>This should be orange</li>
      <li>This should be yellow</li>
      <li>This should be green</li>
      <li>This should be blue</li>
      <li>This should be indigo</li>
      <li>This should be violet</li>
    </ul>
    <script src="js/app.js"></script>
  </body>
</html>
Carl Evison
Carl Evison
2,656 Points
Carl Evison
Carl Evison
2,656 Points

Nope, this challenge doesn't have anything to do with the :nth-child

This was the exact video I stopped and thought I better brush up on my html/css specifically css pseudo-classes

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

You're close, but the instructions want you to get the collection of "all list items in the <ul> element with the ID of rainbow". The selector used above just returns the single element that has that ID.

You can use a different selector that returns a whole collection, or keep this one and access a property that will return the elements inside the selected one.