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

Ali Sh
Ali Sh
2,026 Points

what is the problem?

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

Hi Ali, there is just a couple of things that you missed here:).

Firstly, you did not declare the i variable in the loop like this let i=0. Secondly, at your last statement in your loop you forgot to increment the variable by one like this i+=1. and lastly it is asking you to change the color to blue and not red.

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

for (let i = 0; i < paragraphs.length; i +=1) {
 paragraphs[i].style.color = 'blue';
}