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Start your free trialBodie Wood
Full Stack JavaScript Techdegree Student 4,027 PointsWhy doesnt `document.getElementsByTagName('ul');` work?
Hello!
I'm wondering why the code below doesn't work?
document.getElementsByTagName('ul');
Is this because 'ul' is singular?
I eventually answered this question correctly, but I need to know why the above statements doesn't work.
// Complete the challenge by writing JavaScript below
const colors = ["#C2272D", "#F8931F", "#FFFF01", "#009245", "#0193D9", "#0C04ED", "#612F90"];
let listItems = document.getElementsByTagName('li');
for ( let i = 0; i < colors.length; i++ ) {
listItems[i].style.color = colors[i];
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JavaScript and the DOM</title>
</head>
<body>
<h1>My List</h1>
<ul>
<li>This should be red</li>
<li>This should be orange</li>
<li>This should be yellow</li>
<li>This should be green</li>
<li>This should be blue</li>
<li>This should be indigo</li>
<li>This should be violet</li>
</ul>
<script src="app.js"></script>
</body>
</html>
1 Answer
josephweiss2
7,094 PointsThat's because when you put "document.getElementsByTagName('ul');" you only select the parent element so you cant run thru it with the "for" loop because its just 1 "UL" and your not selecting the LI items. But when you select the "document.getElementsByTagName('li');" you select all LI elements, and then you can run thru it.
Bodie Wood
Full Stack JavaScript Techdegree Student 4,027 PointsBodie Wood
Full Stack JavaScript Techdegree Student 4,027 PointsMakes perfect sense. Thank you!