I try to select a certain DOM element with jQuery.
The HTML content:
JavaScript
x
16
16
1
<html>2
<head>3
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"> </script>4
</head>5
<body>6
<nav id="nav" class="navigator">7
<h1>Nav Header</h1>8
9
<ul class="nav-list">10
<li class="nav-item"><a >Item #1</a></li>11
<li class="nav-item active"><a href="#2">Item #2</a></li>12
</ul>13
</nav>14
</body>15
</html>16
I want to select Item #1. I used
JavaScript
1
2
1
$('.nav-list').children()2
I got
TypeError: $(…).children is not a function
What’s wrong here?
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Answer
You need to include jQuery in your page.
Most browsers nowadays include a $() function in their console by default for easy element selection, but this simply maps to document.getElementById().
The value returned will not have a .children() method.
Additionally, if you load an HTML page directly from your file system, you need to include the http:// for CDN script URLs. Otherwise, your browser will try to find the .js file on your local system.