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

jason limmm
jason limmm
8,009 Points
Posted by jason limmm
jason limmm
8,009 Points

anything wrong with this code?

''' 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];
} ''' here is my code i'm assuming it is correct but when i submit it, it returns 'cannot read property 1 null"

app.js 
// Complete the challenge by writing JavaScript below
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>
jason limmm
jason limmm
8,009 Points
jason limmm
jason limmm
8,009 Points

sorry the error message is cannot read property '1' of null

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

The instructions say "The collection should contain all list items in the <ul> element."

But this code is selecting the list (ul) itself, instead of the list items (li) within it.