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

Posted by Jiayu Wen
Jiayu Wen
8,501 Points

What is the correct answer?

Shouldn't it be

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

for(var i = 0; i < colors.length; i ++) { listItems[i].style.color = colors[i];
}

???????????

js/app.js 
var listItems = document.querySelector("#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

Martin Balon
Martin Balon
43,651 Points
Martin Balon
Martin Balon
43,651 Points

Hi Jiayu,

At the moment you are assigning the ul element to your listItems variable but you need an array of li so you can use for loop later on. All you have to do is to add .children so you can extract li from selected ul. See the code below.

var listItems = document.querySelector("#rainbow").children;