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

yousif alyousif
yousif alyousif
2,322 Points
Posted by yousif alyousif
yousif alyousif
2,322 Points

can some one please give me an advice to pass this loop?

I think what I am doing wrong in this challenge is the loop but I am not so sure! I also tried to come up with a solution for up but my mind did not come up with any thing so any tips from you guys will be appreciated the challenge task is: 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( let i = 0 ; i < section.length; i =+1) {
    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>

1 Answer

Justin Radcliffe
Justin Radcliffe
18,987 Points
Justin Radcliffe
Justin Radcliffe
18,987 Points

Hi Yousif,

  1. In your "for" statement where you increment the index variable (i), you need to reverse the + and = operators.
  2. In your "for" condition you're currently checking the length of "const section" which = 1 (not 3). So check the length of "paragraphs" instead.
  3. Inside the "for" loop you need to include the index variable ( [i] ) to target each paragraph element. Like this: 
 paragraphs[i].style.color = "blue";
yousif alyousif
yousif alyousif
2,322 Points
yousif alyousif
yousif alyousif
2,322 Points

thanks for the nice explanation and time