Specifies the <form> to be submitted to the server, a specific
<button> or <input type="submit"> to use to submit the form, or some
arbitrary data to submit.
Note: When using a <button> its name and value will also be
included in the form data that is submitted.
Optional options: SubmitOptionsOptions that override the <form>'s own attributes. Required when
submitting arbitrary data without a backing <form>.
Submits a HTML
<form>to the server without reloading the page.