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jQuery Focus Selector
The :focus selector in jQuery is used to select the element which currently has focus.
Syntax
The syntax is as follows −
$(":focus")
Example
Let us now see an example to implement the :focus() selector −
<!DOCTYPE html>
<html>
<head>
<style>
.one {
color: brown;
background-color: orange;
font-size: 16px;
border: 2px blue solid;
}
</style>
<script src="https://code.jquery.com/jquery-3.4.1.js"></script>
<script>
$(document).ready(function(){
$("input").focus();
$(":focus").addClass("one");
});
</script>
</head>
<h2>Fill the form</h2>
<body>
ID: <input type="text" name="id"><br>
Rank: <input type="text" name="rank"><br>
Fav. Subjects:
Maths: <input type="checkbox" name="sub" value="maths">
English <input type="checkbox" name="sub" value="english"><br>
<input type="submit" value="Submit"><br>
</body>
</html>
Output
This will produce the following output −
Updated on: 2019-11-05T10:12:27+05:30
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