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

Eli Caldwell
Eli Caldwell
6,766 Points
Posted by Eli Caldwell
Eli Caldwell
6,766 Points

Javascript and the DOM: Child Traversal problem

I am not sure why the attached code is not working. It is telling me that task 1 (select all the child elements of sections) stopped working once I added the loop. It works fine when the loop isn't there.

app.js 
const section = document.querySelector('section');
let paragraphs = section.children;
for (i = 0; i < paragraphs.length; i += 1) {
  paragraphs[i].style.color = '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

James Kirkpatrick
James Kirkpatrick
25,001 Points

You need to create a variable for i. Change:

for (i = 0; i < paragraphs.length; i += 1)

to:

for (let i = 0; i < paragraphs.length; i += 1)