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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Modifying Elements

Posted by Carlton Lee
Carlton Lee
Courses Plus Student 2,381 Points

Modifying Elements Code Challenge Task 2 - variable question

I'm not sure if I understand what I'm suppose to be doing within task two. If I'm using the same variable I'm doing something wrong or I don't understand the context. If I try and change the variable after it's been declared with document.getElementsByTagName() function, I get an error trying to catch the <a> tag text. If I just try and use the <a> tag during the variable declaration, I cause an issue with task one.

So I must not understand exactly what is supposed to happen here. Or if it's suppose to be a different variable name?

app.js 
let inputValue = document.getElementById('linkName').value;
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>DOM Manipulation</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <div id="content">
            <label>Link Name:</label>
            <input type="text" id="linkName">
            <a id="link" href="https://teamtreehouse.com"></a>
        </div>
        <script src="app.js"></script>
    </body>
</html>

3 Answers

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Task 2 is sort of like the opposite of task 1. In task 1 you have taken a value from an element on the page and put it into a variable.

In task 2, you will use the variable (the same one) and put the value into a different page element. So the code to find the correct element and property will be a bit different, and will be on the other side of the assignment.

Carlton Lee
PLUS
Carlton Lee
Courses Plus Student 2,381 Points
Carlton Lee
Carlton Lee
Courses Plus Student 2,381 Points

Perfect! Thanks for the explanation. I think I was just reading it all wrong. With the context that you framed it with, it helps a ton.

Again, thanks! I really appreciate it.

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Start a fresh question (preferably using the "get help" button) and include a description of your issue(s). The system should automatically include your task code and a link to the challenge.