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How to prevent form from being submitted?
We can easily prevent forms on a web page to submit using the event.preventDefault() or returning Flase on submit event handler. Let us see the example one by one −
Prevent form from being submitted using the event.preventDefault()
To prevent form from being submitted, use the event.preventDefault() i.e. −
<form onsubmit="event.preventDefault();">
Example
Let us see the complete example −
<!DOCTYPE html>
<html>
<body>
<h1>Details</h1>
<form onsubmit="event.preventDefault();">
<p>Select the subject you want to choose:</p>
<div>
<input type="radio" id="prog" name="subject" value="prog">
<label for="prog">Programming</label>
<input type="radio" id="dev" name="subject" value="dev">
<label for="dev">Web Development</label>
<input type="radio" id="db" name="subject" value="db">
<label for="db">Database</label>
</div><br/>
<div>
<button id="submit" type="submit">Submit</button>
</div>
</form>
</body>
</html>
Output
Select any option and click Submit. The form won’t submit −
Prevent form from being submitted using the return false on submit event handler
To prevent form from being submitted, use the return false on submit event handler −
<form onsubmit="return false;">
Example
Let us see the complete example −
<!DOCTYPE html>
<html>
<body>
<h1>Details</h1>
<form onsubmit="return false;">
<p>Select the subject you want to choose:</p>
<div>
<input type="radio" id="prog" name="subject" value="prog">
<label for="prog">Programming</label>
<input type="radio" id="dev" name="subject" value="dev">
<label for="dev">Web Development</label>
<input type="radio" id="db" name="subject" value="db">
<label for="db">Database</label>
</div><br/>
<div>
<button id="submit" type="submit">Submit</button>
</div>
</form>
</body>
</html>
Output
Select any option and click Submit. The form won’t submit −
Updated on: 06-Dec-2022
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