jQuery keyup() Method
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jQuery keyup() Method
The jQuery keyup() method is used for the following 2 purpose
- To run a callback when a keyboard key is released in a specified element.
- To trigger the keyup event of a specified element.
Run a Callback
In the following example, we will run a callback function when a keyboard key is released in any input.
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 keyup() Method</h1>
<input type="text" placeholder="type something">
<script>
$(document).ready(function(){
$("input").keyup(function(){
alert("Key is up");
});
});
</script>
</body>
</html>
Syntax
$(selector).keyup(callback);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| callback | Optional | Specifies a function to be called once the key is up. |
Trigger a keyup Event
In the following example, we will trigger a keyup 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 keyup() Method</h1>
<input type="text" placeholder="type something">
<button>Trigger keyup Event</button>
<script>
$(document).ready(function(){
$("input").keyup(function(){
alert("Key is up");
});
$("button").click(function(){
$("input").keyup();
});
});
</script>
</body>
</html>
keydown() vs keypress() vs keyup()
Check out the difference between keydown() vs keypress() vs keyup() in jquery.
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