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JavaScript JavaScript and the DOM Getting a Handle on the DOM Select by Tag Name

Posted by Adlan Ilyasov
Adlan Ilyasov
2,476 Points

Cannot read property '1' of null Im not really sure what im doing wrong here. Help would be appriciated

I cant seem to figure this one out

app.js 
const colors = ["#C2272D", "#F8931F", "#FFFF01", "#009245", "#0193D9", "#0C04ED", "#612F90"];
let listItems = document.getElementsByTagName('ul');


for ( let i = 0; i < colors.length; i++ ) {
  listItems[i].style.color = colors[i];    
}
index.html 
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>JavaScript and the DOM</title>
  </head>
  <body>
    <h1>My List</h1>
    <ul>
      <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="app.js"></script>
  </body>
</html>

1 Answer

Guillermo Gallo
seal-mask
.a{fill-rule:evenodd;}techdegree
Guillermo Gallo
Full Stack JavaScript Techdegree Student 8,517 Points
Guillermo Gallo
.a{fill-rule:evenodd;}techdegree
Guillermo Gallo
Full Stack JavaScript Techdegree Student 8,517 Points

Hi Adlan Ilyasov

Your code is mostly right. The only thing you need to change is your listItems variable, you are currently getting the <ul> list and not the <li> list items, so you need to change it like so:

// replace this
// let listItems = document.getElementsByTagName('ul');

// with this
let listItems = document.getElementsByTagName('li');

Hope this helps