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JavaScript JavaScript and the DOM (Retiring) Responding to User Interaction Event Delegation

skylar stanley
PLUS
skylar stanley
Courses Plus Student 5,870 Points

confused

In the listener that has been added to the section element, ensure that the text input elements are the only children that trigger the background-changing behavior.

index.html
<!DOCTYPE html>
<html>
    <head>
        <title>JavaScript and the DOM</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <section>
            <h1>Making a Webpage Interactive</h1>
            <p>JavaScript is an exciting language that you can use to power web servers, create desktop programs, and even control robots. But JavaScript got its start in the browser way back in 1995.</p>
            <hr>
            <p>Things to Learn</p>
            <ul>
                <li>Item One: <input type="text"></li>
                <li>Item Two: <input type="text"></li>
                <li>Item Three: <input type="text"></li>
                <li>Item Four: <input type="text"></li>
            </ul>
            <button>Save</button>
        </section>
        <script src="app.js"></script>
    </body>
</html>
app.js
let section = document.getElementsByTagName('section')[0];

section.addEventListener('click', (e) => {
  section.target.style.backgroundColor = 'rgb(255, 255, 0)';
});

1 Answer

Steven Parker
Steven Parker
229,708 Points

You won't want to change the line that applies the color change. It should remain as provided, but you will need to wrap it in a conditional block.

This instructions say to "ensure that the text input elements are the only children that trigger the background-changing behavior", so you'll want to test the event target to be sure it is one of the text input elements.