Form submitting
How to succesfully preventdefault ? I've tried a variety of things but it keeps refreshing the page afterwards
21 Replies
You have to put
event as a parameter in the function definition. And defaultPrevented is readonly, you have to call event.preventDefault() instead
https://developer.mozilla.org/en-US/docs/Web/API/Event/preventDefaultEvent: preventDefault() method - Web APIs | MDN
The preventDefault() method of the Event interface tells the user agent that if the event does not get explicitly handled, its default action should not be taken as it normally would be.
so
function checkCredentials(event) {well, that is one of the things I tried but it didn't do as I had hoped :(( I will try it again
Originally I had it in a different function first, being
form.addEventListener("submit"), function(event){event.preventDefault; checkCredentials()}
but that didnt workSidenote I'd submit the form event not the button. Then you can use the form API?
you have to call preventDefault, gotta have the () in there
so like this?
<form onsubmit="function()" .
Well, when I added the () it gave an error claiming it aint nof unctionI like this better yea
giveme a sec
no,
event.preventDefault();Well I'll be damned, this time it did the trick
I hate it here, i could swear I tried this once before yet it didnt work lmao
Oh by the way I've always wondered right, it says "event." is deblabla
but if you do it without, it fails
what should event. actually be replaced with?
deprectaed*
aa deprecated*
not sure what you mean,
event.preventDefault() is the intended vanilla way of cancelling an ongoing eventsee the small event ?
If you hover over it it says its deprecated
I think that might be because you're not passing event in. It should be
(event) => {event.preventDefault();oh I see, well it works either way
tho is it adviced to still put event in as parameter or does it not really matter ?
Because if it doesn't really matter I don't see the point of adding it in as paramter, but if it matters for for example errors or safety, then ill put it in
it does matter
It does? in what way
because you should write clear code
the only reason I can think of it working is more of a side effect of arrow functions and
this
I'd never write it that wayreading code is 10x harder than writing it, and being explicit is worth the extra 5 keystrokes
Alright Alright, you win, I'll put it in
I can't argue with those solid arguments
event is one the few times I'll just use a letter
e too >.>;;
just cause its so common but its better to write it outsame
I finally managed to break the terrible habit of using
e for element as well >_>