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

Christy Kusuma
PLUS
Christy Kusuma
Courses Plus Student 4,563 Points
Posted by Christy Kusuma
Christy Kusuma
Courses Plus Student 4,563 Points

what is wrong with this function?

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

paragraphs = section.children;

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

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

paragraphs = section.children;

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

Sean T. Unwin
Sean T. Unwin
28,686 Points
Sean T. Unwin
Sean T. Unwin
28,686 Points

Looks alright, except for the i variable in the for loop should be declared with let as otherwise it will be a global variable.