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JavaScript

Posted by Cosimo Scarpa
Cosimo Scarpa
14,047 Points

Problem with "myList" variable.

Hello there,

I have problem to define the variable "myList" by console.

I give the command 

const myList = document.getElementsByTagName("li")

but when I try to see the variable with 

myList[0];

the console give me back an error

"myList is not defined"

why?

I paste also the HTML part

<html>
  <head>
    <title>JavaScript and the DOM</title>
    <link rel="stylesheet" href="css/style.css">
  </head>
  <body>
    <h1 id="myHeading">JavaScript and the DOM</h1>
    <p>Making a web page interactive</p>
    <hr>
    <p>Things that are purple:</p>
      <ul>
        <li>grapes</li>
        <li>amethyst</li>
        <li>lavender</li>
        <li>plums</li>
      </ul>
    <script src="app.js"></script>
  </body>

thanks!

2 Answers

Lewis Combey
Lewis Combey
2,533 Points
Lewis Combey
Lewis Combey
2,533 Points

Can I ask why you are using const over var as i dont believe you need to use const

var x = document.getElementsByTagName("LI");

This page should help: https://www.w3schools.com/jsref/met_document_getelementsbytagname.asp

Cosimo Scarpa
Cosimo Scarpa
14,047 Points

because in this case I don't thing that can influence the code.

Kathryn Notson
Kathryn Notson
25,941 Points
Kathryn Notson
Kathryn Notson
25,941 Points

Cosimo Scarpa:

Remember to watch what you type. It should be "document.getElementByTagName()", not "document.getElementsByTagName()". You're getting only 1 element, not multiple elements.

var for variable isn't used any longer it's now let & const per this lesson.