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

Mark Dekin
Mark Dekin
26,839 Points
Posted by Mark Dekin
Mark Dekin
26,839 Points

Task 1 is no longer passing, but it should be fine

As a note I did originally have: let paragraphs = section.querySelectorAll('p'); in step 1 but it then told me it needs to be section.children. But anyway I do not see why this isnt working

app.js 
const section = document.querySelector('section');
let 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>
Mark Dekin
Mark Dekin
26,839 Points
Mark Dekin
Mark Dekin
26,839 Points

NVM I figured out it was that I didnt put 'let i = 0' in the for loop. I am so used to using .forEach rather than for loops in this manner.

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

You haven't declared the variable i.

You need either var or let before the assignment of i in the for statement. The challenge operates in "strict mode" where implicit global declaration is not allowed.