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jQuery :first-child Selector
The :first-child selector in jQuery is used to select all elements, which are the first child of their parent.
Syntax
The syntax is as follows −
$(":first-child")
Example
Let us now see an example to implement the :first-child() selector −
<!DOCTYPE html>
<html>
<head>
<style>
.demo {
background-color: red;
color: white;
font-size: 16px;
border: 2px blue dashed;
}
</style>
<script src="https://code.jquery.com/jquery-3.4.1.js"></script>
<script>
$(document).ready(function(){
$("p:first-child").addClass("demo");
});
</script>
</head>
<body>
<p>This is the first line!</p>
<p>This is the second line!</p>
<p>This is the third line!</p>
<hr>
<div>
<p>One</p>
<p>Two</p>
<p>Three</p>
<p>Four</p>
</div>
<hr>
<p>This is the last line.</p>
</body>
</html>
Output
This will produce the following output −
Updated on: 2019-11-05T10:06:38+05:30
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