constraining the behavior of the AddEventListener to only certain children?

Question

I'm thinking somewhere I should specify that the target should be limited to input type=text but I don't know how to do that.

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

Answer 1 · 2016-12-25T21:45:24Z

December 25, 2016 9:45pm

Hey Tom, you could use

let section = document.getElementsByTagName('section');

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

That way the background color will only change if the target element has a type of text. Have a nice day!

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Tom Kaufman

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constraining the behavior of the AddEventListener to only certain children?

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Jesus Mendoza

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Tom Kaufman

Tom Kaufman

Jesus Mendoza

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