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

Ammar Sulthan
Ammar Sulthan
3,894 Points
Posted by Ammar Sulthan
Ammar Sulthan
3,894 Points

I don't know how to set the text content of the a tag to be the value stored in the variable inputValue.

What do you guys think is the mistake?

app.js 
let inputValue = document.querySelector('input').value;


inputValue = document.textContent('#link');
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>

2 Answers

Shay Paustovsky
Shay Paustovsky
969 Points
Shay Paustovsky
Shay Paustovsky
969 Points

Hi Ammar,

You're doing a great job, but you got it confused a little bit.

In your code : 

let inputValue = document.querySelector('input').value;

inputValue = document.textContent('#link');

you're assigning the value of the input field immediatly to the 'inputValue' variable, and then modifying it's text content. That is where you got confused.

So let me explain :

P.S. - It's a best practice to declare variables using the "const" keyword if you're not planning to override them/change them.

const inputField = document.querySelector('.input');
const link = document.querySelector('#link')

link.textContent = inputField.value;

Here I'm selecting the input & a elements using "querySelector" method. Then I assign the textContent of the link to the value of the inputField variable.

BTW : textContent is not a method but rather a property.

Hopefully this solves your problem and confusion

Shay

Matthew Lestina
PLUS
Matthew Lestina
Courses Plus Student 122 Points
Matthew Lestina
Matthew Lestina
Courses Plus Student 122 Points

I'm just an intermediate, so mark me if i am wrong, but in Ammar's statement:

let inputValue = document.querySelector('input').value;

what goes between the '(' and the ')' should be a selector such as a class or an id. I fail to see any class or id named "input", and I fail to see 'input' being preceded by see the required "." or the "#" .

And again in Shay's response, I fail to see any class called "input" that would justify the "('.input')".