Disabling the button after once click

jQuery now has the .one() function that limits any given event (such as “submit”) to one occurrence.

Example:

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

This code will let you submit the form once, then disable the button. Change the selector in the find() function to whatever button you’d like to disable.

Note: Per Francisco Goldenstein, I’ve changed the selector to the form and the event type to submit. This allows you to submit the form from anywhere (places other than the button) while still disabling the button on submit.

Note 2: Per gorelog, using attr('disabled', 'disabled') will prevent your form from sending the value of the submit button. If you want to pass the button value, use attr('onclick', 'this.style.opacity = "0.6"; return false;') instead.

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