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

Robert Ciuruś
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Robert Ciuruś
Front End Web Development Techdegree Graduate 13,259 Points
Posted by Robert Ciuruś
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Robert Ciuruś
Front End Web Development Techdegree Graduate 13,259 Points

Cannot read property '1' of null

Hey, I'm having a problem I can't quite resolve, my code isn't working and I'm not able to find out why, despite trying different approaches :( Could someone explain what am I doing wrong? Thanks!

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

for (let 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; 2019</p> 
        </footer>
        <script src="app.js"></script>
    </body>
</html>

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

I received a different message in the console:

TypeError: paragraphs[i].style.color is not a function

to fix this it should be

paragraphs[i].style.color = 'blue'
Piotr Manczak
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Piotr Manczak
Front End Web Development Techdegree Graduate 28,940 Points
Piotr Manczak
.a{fill-rule:evenodd;}techdegree seal-36
Piotr Manczak
Front End Web Development Techdegree Graduate 28,940 Points

Pay attention to the last line of your code:

var section = document.querySelector('section');

var paragraphs = section.children;

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

paragraphs[i].style.color = 'blue'; }