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JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Child Traversal

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

not understanding what i am doing incorrectly

For every paragraph element change the color to be blue.

(Hint: remember, paragraphs contains a collection of elements, so you'll need to use a loop and access each element inside.)

app.js 
const section = document.querySelector('section');
let paragraphs = section.children;
for (let i = 0; i < paragraphs.length; i += 1) {
i.style.backgroundColor = 'blue';
}
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>Child Traversal</title>
    </head>
    <body>
        <section>
            <p>This is the first paragraph</p>
            <p>This is a slightly longer, second paragraph</p>
            <p>Shorter, last paragraph</p>
        </section>
        <footer>
            <p>&copy; 2016</p> 
        </footer>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Matthew Potter
Matthew Potter
8,718 Points
Matthew Potter
Matthew Potter
8,718 Points

i ++

is the equivalent of

i = i + 1;

also you are only changing the paragraphs. no need for backgroundColor

const section = document.querySelector('section');
let paragraphs = section.children;

for (let i = 0; i < paragraphs.length; i++) {
     paragraphs[i].style.color = 'blue';
}