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

Antonio Goncalves
Antonio Goncalves
5,975 Points
Posted by Antonio Goncalves
Antonio Goncalves
5,975 Points

No beginning section element tag in html file. Confusing question. Please help.

I cannot make sense of this question. First of all the li tags do not exist inside the section tag.

index.html 
<!DOCTYPE html>
<html>
    <head>mkjnk
        <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) => {
  if (e.target.tagName == "LI"){
    section.style.backgroundColor = 'rgb(255, 255, 0)';
  }
});

1 Answer

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

:point_right: The <li> tags do exist inside the <section> tag.

The <li> tags are descendants of the <section> tag, not direct children. But that's not what the challenge is asking you to deal with anyway.

The challenge is asking you to filter out events from everything except the text input elements. Hint: they are also descendants of the <section> tag.