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

gugulethu
gugulethu
6,292 Points
Posted by gugulethu
gugulethu
6,292 Points

Why do i keep getting Task 1 is no longer passing?

I'm doing the last code review of the JS and the DOM section. Task 1 is correct, but I keep being stopped at Task 2 for an error in task 1.

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

paragraphs.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>
gugulethu
gugulethu
6,292 Points
gugulethu
gugulethu
6,292 Points

Ok so the correct code should be:

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

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

To change all the p's.

This code works on codepen. Still the same problem on Treehouse.

2 Answers

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

:point_right: You should have gotten a hint with your error.

When you tried your loop in the challenge, the error should have included this hint: "Strict mode forbids implicit creation of global property 'g'".

So all you need to do now is add a "var" or "let" to your loop initialization clause:

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

It worked as-is on codepen because strict mode is not enabled by default there.

gugulethu
gugulethu
6,292 Points
gugulethu
gugulethu
6,292 Points

Of course, thanks so much