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JavaScript JavaScript and the DOM (Retiring) Getting a Handle on the DOM Selecting Multiple Elements

Posted by malcolm mowlam
malcolm mowlam
3,856 Points

challenge task 1 of 1 javascript and the dom

can anyone please help with task 1 of 1 javascript and the dom

js/app.js 
var listItems="#rainbow"("ul");
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>

2 Answers

Heidi Fryzell
seal-mask
MOD
.a{fill-rule:evenodd;}techdegree seal-36
Heidi Fryzell
Front End Web Development Treehouse Moderator 25,178 Points
Heidi Fryzell
.a{fill-rule:evenodd;}techdegree seal-36
Heidi Fryzell
Front End Web Development Treehouse Moderator 25,178 Points

Hi Malcom,

This is definitely tricky.

If you watch the video right before the challenge Guil will show you how to use "document.querySelectorAll" to select a collection of items.

So using the "document.querySelectorAll" you select first the <ul> that has an id of "#rainbow" and then all the <li> items that are children of the <ul> with this id.

var listItems = document.querySelectorAll('#rainbow li');

Hope this helps. Happy coding!

Heidi

Lateefah Camacho
Lateefah Camacho
3,067 Points
Lateefah Camacho
Lateefah Camacho
3,067 Points

Thank you, your explanation really helped.

malcolm mowlam
malcolm mowlam
3,856 Points
malcolm mowlam
malcolm mowlam
3,856 Points

Thank you Dear Heidi that is a great help thank you