jQuery one() Method
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jQuery one() Method
The jQuery one() method attaches a handler to an event for the elements. The handler is executed at most once per element per event type.
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 one() Method</h1>
<p>Click on this paragraph to increase its text size. The event will trigger only once.</p>
<script>
$(document).ready(function(){
$("p").one("click", function(){
$(this).css("font-size","+=5px");
});
});
</script>
</body>
</html>
Syntax
$(selector).one(events, data, handler);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| events | Required | Specifies a string containing one or more JavaScript event types, such as "click" or "submit," or custom event names. |
| data | Optional | Data to be passed to the handler in event.data when an event is triggered. |
| handler | Required | Specifies the function to run when the event occurs. |
Reminder
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