how to disable submit button on form submit using Jquery?

Consider we have this HTML form
<form id="check" action="url.php" method="get"> 
<input name="username" />
<input id="submit" type="submit" />
</form>
Here the jquery code to disable submit button 

$('#check').submit(function(){
$('input[type=submit]', this).attr('disabled', 'disabled');
});

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