Issue with "<form>": describe running javascript on submit: onsubmit and javascript pseudo-protocol

[jxu]

MDN URL: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form

What information was incorrect, unhelpful, or incomplete?

I have been reading Stack Overflow for solutions to have a form run run javascript without refreshing the page. This is achieved by returning a javascript function in onsubmit, then the javascript function has to return false? https://stackoverflow.com/a/16262814

Also there is a method to do action="javascript:function()" that probably should be documented.

There is also the solutions here https://stackoverflow.com/questions/12694984/make-form-run-a-javascript-function?noredirect=1&lq=1

Specific section or headline?

Attributes?

MDN Content page report details

• Folder: en-us/web/html/element/form
• MDN URL: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form
• GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/html/element/form/index.html
• Last commit: 29af89a
• Document last modified: 2021-06-30T01:12:54.000Z

[NegiAkash890]

Hi, I see action documented under this section . Can you please explain the issue you are facing ?

[jxu]

Document onaction and link to javascript: url #7143

[Josh-Cena]

Hello,

• action is documented. It represents the URL that the request is sent to. If the request is sent to a javascript: URL, the browser executes JavaScript instead. This will be documented as part of Content suggestion: javascript pseudo-protocol identifier #7143.
• onsubmit is "documented" in https://developer.mozilla.org/en-US/docs/Web/API/HTMLFormElement/submit_event; this is how MDN documents events now. There are some overall concepts that we don't explain here, like the fact that onsubmit returning false would prevent default behavior, but that would be a separate topic and won't be discussed on this page. You may find some information on https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes#event_handler_attributes, and we will also track onXYZ hard to search after event refactoring #18354.

So I think this should not be documented as part of this page as it's more a general engineering concept than something specific to how forms work.