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

How do I write a conditional that makes it so that the event target is specifically applied only to the input elements?

The challenge asks that you add to the code already in place, so I'm not sure how to implement a conditional that would single out strictly the input elements here.

app.js
let section = document.getElementsByTagName('section')[0];

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

1 Answer

Steven Parker
Steven Parker
210,934 Points

Adding a conditional to the body code would look like this:

  If (/*your_conditional_expression_here*/) {      // <-- add this line
    e.target.style.backgroundColor = 'rgb(255, 255, 0)';
  }                                                // <-- and this one

And for your conditional expression, you might compare the "tagName" property of the target with "INPUT" (since tag names are always stored in upper case).