The “only-child” is used to select all elements that are the only child of their parent.
Examples
- $(‘:only-child’) – selects all elements that are the only child of their parent.
- $(‘li:only-child’) – selects all elements matched by <li> that are the only child of their parent.
jQuery Example
In this example, when the button is clicked, only the <li>DEF #1</li> will be match and change its background color dynamically, because it’s the only child of their parent.
<html>
<head>
<title>jQuery only child example</title>
<script type="text/javascript" src="jquery-1.3.2.min.js"></script>
</head>
<body>
<h1>jQuery only child example</h1>
<ul>
<li>ABC #1</li>
<li>ABC #2</li>
<li>ABC #3</li>
<li>ABC #4</li>
<li>ABC #5</li>
</ul>
<ul>
<li>DEF #1</li>
</ul>
<ul>
<li>GHI #1</li>
<li>GHI #2</li>
</ul>
<button>li:only-child</button>
<script type="text/javascript">
$("button").click(function () {
var str = $(this).text();
$("li").css("background", "white");
$(str).css("background", "coral");
});
</script>
</body>
</html>
