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

Ceil-Ian Maralit
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Ceil-Ian Maralit
Front End Web Development Techdegree Graduate 19,434 Points
Posted by Ceil-Ian Maralit
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Ceil-Ian Maralit
Front End Web Development Techdegree Graduate 19,434 Points

Modifying changes gone wrong

I can't seem to spot the error here. Need help.

app.js 
let inputValue = document.querySelector('#linkName').value;
inputValue.textContent = document.querySelector('#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>

1 Answer

Elijah Quesada
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Elijah Quesada
Front End Web Development Techdegree Graduate 32,965 Points

There's a number of ways to complete this challenge. Line 1 will work.

Line 2 however will not. The challenge asks to set the a tag to the input value, not the other way around. With regards to assignment operator "=", whatever is on the right, the return value will be stored on the left. This is known as Operator Precedence

For instance:

let inputValue = document.querySelector('#linkName').value;
document.querySelector("a").textContent = inputValue;

or

let inputValue = document.querySelector('input').value;
const aTag = document.querySelector("a");
aTag.textContent = inputValue;