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

Posted by William Ray Noble
William Ray Noble
22,190 Points

Hello. I have been struggling with JavaScript and the Dom and I cannot think of a way to resolve this question. TIA

I'm sure the problem is fairly obvious and I'm just overlooking something simple.

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>

1 Answer

Steven Parker
Steven Parker
231,008 Points
Steven Parker
Steven Parker
231,008 Points

The element with the ID of "rainbow" is the unordered list (ul). The list items (li) are the children of that list element:

var listItems = document.getElementById('rainbow').children;

// and another way to select the same collection of list items:
var listItems = document.querySelectorAll('#rainbow li');