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

Posted by Rohit Sagar
Rohit Sagar
5,938 Points

Pls Help//

Pls help me on this question. I dont understand what should i do there to complete that code ?

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>
js/app.js 
let listItems;
const colors = ["#C2272D", "#F8931F", "#FFFF01", "#009245", "#0193D9", "#0C04ED", "#612F90"];

for(var i = 0; i < colors.length; i ++) {
  listItems[i].style.color = colors[i];    
}
Rohit Sagar
Rohit Sagar
5,938 Points

We have some JavaScript code that will cycle over list items and apply colors from an array called colors. The code will apply the first color to the first list item, the second color to the second list item and so on. But the code is not complete. On line 1 of app.js, set the variable listItems to refer to a collection. The collection should contain all list items in the unordered list element with the id of rainbow.

1 Answer

Brendan McCray
Brendan McCray
5,597 Points
Brendan McCray
Brendan McCray
5,597 Points

You need to use querySelectorAll to select the <li> elements.

Here's the answer. Add it to line 1 of your app.js file:

  • let listItems = document.querySelectorAll('li');
Rohit Sagar
Rohit Sagar
5,938 Points

Thank u .