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

Posted by Ubaid Eusufzai
Ubaid Eusufzai
9,621 Points

Need help solving this task. Task 1

I have no clue how to use 'for loop'. It has just been introduced without any explanation. I am really struggling with the DOM course. specially this task. don't where to begin

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>
Ubaid Eusufzai
Ubaid Eusufzai
9,621 Points

Thank you jb30 for help, It worked.

1 Answer

jb30
jb30
44,805 Points
jb30
jb30
44,805 Points

You don't need to do anything with the for loop to pass the challenge. You need to set the variable listItems to refer to a collection, such as by using document.querySelectorAll() and putting the correct tags in the parentheses. All that the for loop is doing here is setting a color to each of the elements in the collection.