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HTMLFormElement: submit() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The HTMLFormElement.submit() method submits a given
<form>.
This method is similar, but not identical to, activating a form's submit
<button>. When invoking this method directly, however:
The HTMLFormElement.requestSubmit() method is identical to activating a
form's submit <button> and does not have these differences.
A form control (such as a submit button) with a name or id of submit will mask the form's submit method. Trying to call myForm.submit(); throws an error "submit is not a function" because in this case submit refers to the form control which has a name or id of submit.
<input> with attribute type="submit" will not be submitted with the
form when using HTMLFormElement.submit(), but it would be
submitted when you do it with original HTML form submit.
js
document.forms["my-form"].submit();