jQuery focus() Method
jQuery focus() Method
The jQuery focus() method is used for the following 2 purpose
- To run a callback when a specified element is focused.
- To trigger the focus event of a specified element.
Run a Callback
In the following example, we will run a callback function when an input get focus.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery focus() Method</h1>
<p>Focus the input.</p>
<input type="text">
<script>
$(document).ready(function(){
$("input").focus(function(){
$(this).val("Input is focused");
});
});
</script>
</body>
</html>
Syntax
$(selector).focus(callback);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| callback | Optional | Specifies a function to be called once the input is focused. |
Trigger a focus Event
In the following example, we will trigger a focus event when a button is clicked.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery focus() Method</h1>
<p>Focus the input, or click on the button.</p>
<input type="text">
<button>Trigger focus Event</button>
<script>
$(document).ready(function(){
$("input").focus(function(){
$(this).val("Input is focused");
});
$("button").click(function(){
$("input").focus();
});
});
</script>
</body>
</html>
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