I'm trying to use google invisible recaptcha on my web form (php and codeigniter 3). but somehow whenever I click on the Submit button, the google recaptcha keeps generating questions as if ignoring all the other codes before the execute command. so none of the console.log and alert ever appear. what is wrong with my code?
my code looks like this:
HTML
<form id="form_signup" method="post" action="/signup">
<input type="text" name="username"/>
<div class="g-recaptcha"
id="form_signup-recaptcha"
data-size="invisible"
data-sitekey="<?php echo $mysitekey; ?>"
data-callback="onSubmitFormSignupUser">
</div>
<button type="button" id="formSignup-btnSubmit">
Submit
</button>
</form>
JS
var widgetId = '';
var onLoadRecaptcha = function() {
widgetId = grecaptcha.render('formSignup-btnSubmit', {
'sitekey' : $('#form_signup-recaptcha').attr('data-sitekey'),
'callback' : $('#form_signup-recaptcha').attr('data-callback'),
});
};
var onSubmitFormSignupUser = function(response) {
console.log('response', response);
if ($('[name="username"]').val()) {
alert('yes');
grecaptcha.execute(widgetId);
doSubmitFormToServer('#form_signup');
}
else {
alert('no');
grecaptcha.reset(widgetId);
}
}
var doSubmitFormToServer = function(selector) {
var myData = $(selector).serializeArray();
console.log('send form data', myData);
}
Well, you had a typo in the id, at least, here id="form_signup-recaptcha" and here: 'sitekey' : $('#formSignup-recaptcha').attr('data-sitekey'),, other than that, it is not clear, was it invoked at all, or not, as you've not provided the part of including the script, which should contain ?onload=onLoadRecaptcha parameter.
The code is below, but it won't work here, because of null origin. Check Codepen instead: https://codepen.io/extempl/pen/abOvBZv
sitekey used is one is for testing purposes only, as described here: https://developers.google.com/recaptcha/docs/faq#id-like-to-run-automated-tests-with-recaptcha-v2-what-should-i-do
var widgetId = "";
var onLoadRecaptcha = function() {
widgetId = grecaptcha.render("formSignup-btnSubmit", {
sitekey: $("#form_signup-recaptcha").attr("data-sitekey"),
callback: $("#form_signup-recaptcha").attr("data-callback")
});
};
var onSubmitFormSignupUser = function(response) {
console.log("response", response);
if ($('[name="username"]').val()) {
grecaptcha.execute(widgetId);
doSubmitFormToServer("#form_signup");
} else {
$(".status").text("failed");
grecaptcha.reset(widgetId);
}
};
var doSubmitFormToServer = function(selector) {
var myData = $(selector).serializeArray();
$(".status").text("submitted");
console.log("send form data", myData);
};
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://www.google.com/recaptcha/api.js?onload=onLoadRecaptcha"></script>
<body>
<form id="form_signup" method="post" action="/signup">
<input type="text" name="username" />
<div
class="g-recaptcha"
id="form_signup-recaptcha"
data-size="invisible"
data-sitekey="6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI"
data-callback="onSubmitFormSignupUser">
</div>
<button type="button" id="formSignup-btnSubmit">
Submit
</button>
<span class="status"></span>
</form>
</body>
it turns out that the solution is so simple.
this code
var onLoadRecaptcha = function() {
widgetId = grecaptcha.render("formSignup-btnSubmit", { // wrong element ID
sitekey: $("#form_signup-recaptcha").attr("data-sitekey"),
callback: $("#form_signup-recaptcha").attr("data-callback")
});
};
should be like this
var onLoadRecaptcha = function() {
widgetId = grecaptcha.render("form_signup-recaptcha", { // corrent element ID
sitekey: $("#form_signup-recaptcha").attr("data-sitekey"),
callback: $("#form_signup-recaptcha").attr("data-callback")
});
};
because the recaptcha element is like this
<div
class="g-recaptcha"
id="form_signup-recaptcha"
data-size="invisible"
data-sitekey="6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI"
data-callback="onSubmitFormSignupUser">
</div>
so basically the parameters for grecaptcha.render should follow the properties in the element that has g-recaptcha class. my mistake was that I used the button id, even though the element with g-recaptcha class was the div.
I don't remember reading about this particular thing in the documentation. I guess I'm too stupid to realize that before this.. I hope this makes things clear for others with the same problem.
I have a .submit() event set up for form submission. I also have multiple forms on the page, but just one here for this example. I'd like to know which submit button was clicked without applying a .click() event to each one.
Here's the setup:
<html>
<head>
<title>jQuery research: forms</title>
<script type='text/javascript' src='../jquery-1.5.2.min.js'></script>
<script type='text/javascript' language='javascript'>
$(document).ready(function(){
$('form[name="testform"]').submit( function(event){ process_form_submission(event); } );
});
function process_form_submission( event ) {
event.preventDefault();
//var target = $(event.target);
var me = event.currentTarget;
var data = me.data.value;
var which_button = '?'; // <-- this is what I want to know
alert( 'data: ' + data + ', button: ' + which_button );
}
</script>
</head>
<body>
<h2>Here's my form:</h2>
<form action='nothing' method='post' name='testform'>
<input type='hidden' name='data' value='blahdatayadda' />
<input type='submit' name='name1' value='value1' />
<input type='submit' name='name2' value='value2' />
</form>
</body>
</html>
Live example on jsfiddle
Besides applying a .click() event on each button, is there a way to determine which submit button was clicked?
I asked this same question: How can I get the button that caused the submit from the form submit event?
I ended up coming up with this solution and it worked pretty well:
$(document).ready(function() {
$("form").submit(function() {
var val = $("input[type=submit][clicked=true]").val();
// DO WORK
});
$("form input[type=submit]").click(function() {
$("input[type=submit]", $(this).parents("form")).removeAttr("clicked");
$(this).attr("clicked", "true");
});
});
In your case with multiple forms you may need to tweak this a bit but it should still apply
I found that this worked.
$(document).ready(function() {
$( "form" ).submit(function () {
// Get the submit button element
var btn = $(this).find("input[type=submit]:focus" );
});
}
This works for me:
$("form").submit(function() {
// Print the value of the button that was clicked
console.log($(document.activeElement).val());
}
When the form is submitted:
document.activeElement will give you the submit button that was clicked.
document.activeElement.getAttribute('value') will give you that button's value.
Note that if the form is submitted by hitting the Enter key, then document.activeElement will be whichever form input that was focused at the time. If this wasn't a submit button then in this case it may be that there is no "button that was clicked."
There is a native property, submitter, on the SubmitEvent interface.
Standard Web API:
var btnClicked = event.submitter;
jQuery:
var btnClicked = event.originalEvent.submitter;
Here's the approach that seems cleaner for my purposes.
First, for any and all forms:
$('form').click(function(event) {
$(this).data('clicked',$(event.target))
});
When this click event is fired for a form, it simply records the originating target (available in the event object) to be accessed later. This is a pretty broad stroke, as it will fire for any click anywhere on the form. Optimization comments are welcome, but I suspect it will never cause noticeable issues.
Then, in $('form').submit(), you can inquire what was last clicked, with something like
if ($(this).data('clicked').is('[name=no_ajax]')) xhr.abort();
Wow, some solutions can get complicated! If you don't mind using a simple global, just take advantage of the fact that the input button click event fires first. One could further filter the $('input') selector for one of many forms by using $('#myForm input').
$(document).ready(function(){
var clkBtn = "";
$('input[type="submit"]').click(function(evt) {
clkBtn = evt.target.id;
});
$("#myForm").submit(function(evt) {
var btnID = clkBtn;
alert("form submitted; button id=" + btnID);
});
});
I have found the best solution is
$(document.activeElement).attr('id')
This not only works on inputs, but it also works on button tags.
Also it gets the id of the button.
Another possible solution is to add a hidden field in your form:
<input type="hidden" id="btaction"/>
Then in the ready function add functions to record what key was pressed:
$('form#myForm #btnSubmit').click(function() {
$('form#myForm #btaction').val(0);
});
$('form#myForm #btnSubmitAndSend').click(function() {
$('form#myForm #btaction').val(1);
});
$('form#myForm #btnDelete').click(function() {
$('form#myForm #btaction').val(2);
});
Now in the form submition handler read the hidden variable and decide based on it:
var act = $('form#myForm #btaction').val();
Building on what Stan and yann-h did but this one defaults to the first button. The beauty of this overall approach is that it picks up both the click and the enter key (even if the focus was not on the button. If you need to allow enter in the form, then just respond to this when a button is focused (i.e. Stan's answer). In my case, I wanted to allow enter to submit the form even if the user's current focus was on the text box.
I was also using a 'name' attribute rather than 'id' but this is the same approach.
var pressedButtonName =
typeof $(":input[type=submit]:focus")[0] === "undefined" ?
$(":input[type=submit]:first")[0].name :
$(":input[type=submit]:focus")[0].name;
This one worked for me
$('#Form').submit(function(){
var btn= $(this).find("input[type=submit]:focus").val();
alert('you have clicked '+ btn);
}
Here is my solution:
$('#form').submit(function(e){
console.log($('#'+e.originalEvent.submitter.id));
e.preventDefault();
});
If what you mean by not adding a .click event is that you don't want to have separate handlers for those events, you could handle all clicks (submits) in one function:
$(document).ready(function(){
$('input[type="submit"]').click( function(event){ process_form_submission(event); } );
});
function process_form_submission( event ) {
event.preventDefault();
//var target = $(event.target);
var input = $(event.currentTarget);
var which_button = event.currentTarget.value;
var data = input.parents("form")[0].data.value;
// var which_button = '?'; // <-- this is what I want to know
alert( 'data: ' + data + ', button: ' + which_button );
}
As I can't comment on the accepted answer, I bring here a modified version that should take into account elements that are outside the form (ie: attached to the form using the form attribute). This is for modern browser: http://caniuse.com/#feat=form-attribute . The closest('form') is used as a fallback for unsupported form attribute
$(document).on('click', '[type=submit]', function() {
var form = $(this).prop('form') || $(this).closest('form')[0];
$(form.elements).filter('[type=submit]').removeAttr('clicked')
$(this).attr('clicked', true);
});
$('form').on('submit', function() {
var submitter = $(this.elements).filter('[clicked]');
})
You can simply get the event object when you submit the form. From that, get the submitter object. As below:
$(".review-form").submit(function (e) {
e.preventDefault(); // avoid to execute the actual submit of the form.
let submitter_btn = $(e.originalEvent.submitter);
console.log(submitter_btn.attr("name"));
}
In case you want to send this form to the backend, you can create a new form element by new FormData() and set the key-value pair for which button was pressed, then access it in the backend. Something like this -
$(".review-form").submit(function (e) {
e.preventDefault(); // avoid to execute the actual submit of the form.
let form = $(this);
let newForm = new FormData($(form)[0]);
let submitter_btn = $(e.originalEvent.submitter);
console.log(submitter_btn.attr("name"));
if (submitter_btn.attr("name") == "approve_btn") {
newForm.set("action_for", submitter_btn.attr("name"));
} else if (submitter_btn.attr("name") == "reject_btn") {
newForm.set("action_for", submitter_btn.attr("name"));
} else {
console.log("there is some error!");
return;
}
}
I was basically trying to have a form where user can either approve or disapprove/ reject a product for further processes in a task.
My HTML form is something like this -
<form method="POST" action="{% url 'tasks:review-task' taskid=product.task_id.id %}"
class="review-form">
{% csrf_token %}
<input type="hidden" name="product_id" value="{{product.product_id}}" />
<input type="hidden" name="task_id" value="{{product.task_id_id}}" />
<button type="submit" name="approve_btn" class="btn btn-link" id="approve-btn">
<i class="fa fa-check" style="color: rgb(63, 245, 63);"></i>
</button>
<button type="submit" name="reject_btn" class="btn btn-link" id="reject-btn">
<i class="fa fa-times" style="color: red;"></i>
</button>
</form>
Let me know if you have any doubts.
Try this:
$(document).ready(function(){
$('form[name="testform"]').submit( function(event){
// This is the ID of the clicked button
var clicked_button_id = event.originalEvent.submitter.id;
});
});
$("form input[type=submit]").click(function() {
$("<input />")
.attr('type', 'hidden')
.attr('name', $(this).attr('name'))
.attr('value', $(this).attr('value'))
.appendTo(this)
});
add hidden field
For me, the best solutions was this:
$(form).submit(function(e){
// Get the button that was clicked
var submit = $(this.id).context.activeElement;
// You can get its name like this
alert(submit.name)
// You can get its attributes like this too
alert($(submit).attr('class'))
});
Working with this excellent answer, you can check the active element (the button), append a hidden input to the form, and optionally remove it at the end of the submit handler.
$('form.form-js').submit(function(event){
var frm = $(this);
var btn = $(document.activeElement);
if(
btn.length &&
frm.has(btn) &&
btn.is('button[type="submit"], input[type="submit"], input[type="image"]') &&
btn.is('[name]')
){
frm.append('<input type="hidden" id="form-js-temp" name="' + btn.attr('name') + '" value="' + btn.val() + '">');
}
// Handle the form submit here
$('#form-js-temp').remove();
});
Side note: I personally add the class form-js on all forms that are submitted via JavaScript.
Similar to Stan answer but :
if you have more than one button, you have to get only the
first button => [0]
if the form can be submitted with the enter key, you have to manage a default => myDefaultButtonId
$(document).on('submit', function(event) {
event.preventDefault();
var pressedButtonId =
typeof $(":input[type=submit]:focus")[0] === "undefined" ?
"myDefaultButtonId" :
$(":input[type=submit]:focus")[0].id;
...
}
This is the solution used by me and work very well:
// prevent enter key on some elements to prevent to submit the form
function stopRKey(evt) {
evt = (evt) ? evt : ((event) ? event : null);
var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
var alloved_enter_on_type = ['textarea'];
if ((evt.keyCode == 13) && ((node.id == "") || ($.inArray(node.type, alloved_enter_on_type) < 0))) {
return false;
}
}
$(document).ready(function() {
document.onkeypress = stopRKey;
// catch the id of submit button and store-it to the form
$("form").each(function() {
var that = $(this);
// define context and reference
/* for each of the submit-inputs - in each of the forms on
the page - assign click and keypress event */
$("input:submit,button", that).bind("click keypress", function(e) {
// store the id of the submit-input on it's enclosing form
that.data("callerid", this.id);
});
});
$("#form1").submit(function(e) {
var origin_id = $(e.target).data("callerid");
alert(origin_id);
e.preventDefault();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<form id="form1" name="form1" action="" method="post">
<input type="text" name="text1" />
<input type="submit" id="button1" value="Submit1" name="button1" />
<button type="submit" id="button2" name="button2">
Submit2
</button>
<input type="submit" id="button3" value="Submit3" name="button3" />
</form>
This works for me to get the active button
var val = document.activeElement.textContent;
It helped me https://stackoverflow.com/a/17805011/1029257
Form submited only after submit button was clicked.
var theBtn = $(':focus');
if(theBtn.is(':submit'))
{
// ....
return true;
}
return false;
I was able to use jQuery originalEvent.submitter on Chrome with an ASP.Net Core web app:
My .cshtml form:
<div class="form-group" id="buttons_grp">
<button type="submit" name="submitButton" value="Approve" class="btn btn-success">Approve</button>
<button type="submit" name="submitButton" value="Reject" class="btn btn-danger">Reject</button>
<button type="submit" name="submitButton" value="Save" class="btn btn-primary">Save</button>
...
The jQuery submit handler:
#section Scripts {
#{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
<script type="text/javascript">
$(document).ready(function() {
...
// Ensure that we log an explanatory comment if "Reject"
$('#update_task_form').on('submit', function (e) {
let text = e.originalEvent.submitter.textContent;
if (text == "Reject") {
// Do stuff...
}
});
...
The jQuery Microsoft bundled with my ASP.Net Core environment is v3.3.1.
Let's say I have these "submit" buttons:
<button type="submit" name="submitButton" id="update" value="UpdateRecord" class="btn btn-primary">Update Record</button>
<button type="submit" name="submitButton" id="review_info" value="ReviewInfo" class="btn btn-warning sme_only">Review Info</button>
<button type="submit" name="submitButton" id="need_more_info" value="NeedMoreInfo" class="btn btn-warning sme_only">Need More Info</button>
And this "submit" event handler:
$('#my_form').on('submit', function (e) {
let x1 = $(this).find("input[type=submit]:focus");
let x2 = e.originalEvent.submitter.textContent;
Either expression works. If I click the first button, both "x1" and "x2" return Update Record.
I also made a solution, and it works quite well:
It uses jQuery and CSS
First, I made a quick CSS class, this can be embedded or in a seperate file.
<style type='text/css'>
.Clicked {
/*No Attributes*/
}
</style>
Next, On the click event of a button within the form,add the CSS class to the button. If the button already has the CSS class, remove it. (We don't want two CSS classes [Just in case]).
// Adds a CSS Class to the Button That Has Been Clicked.
$("form :input[type='submit']").click(function ()
{
if ($(this).hasClass("Clicked"))
{
$(this).removeClass("Clicked");
}
$(this).addClass("Clicked");
});
Now, test the button to see it has the CSS class, if the tested button doesn't have the CSS, then the other button will.
// On Form Submit
$("form").submit(function ()
{
// Test Which Button Has the Class
if ($("input[name='name1']").hasClass("Clicked"))
{
// Button 'name1' has been clicked.
}
else
{
// Button 'name2' has been clicked.
}
});
Hope this helps!
Cheers!
You can create input type="hidden" as holder for a button id information.
<input type="hidden" name="button" id="button">
<input type="submit" onClick="document.form_name.button.value = 1;" value="Do something" name="do_something">
In this case form passes value "1" (id of your button) on submit. This works if onClick occurs before submit (?), what I am not sure if it is always true.
A simple way to distinguish which <button> or <input type="button"...> is pressed, is by checking their 'id':
$("button").click(function() {
var id = $(this).attr('id');
...
});
Here is a sample, that uses this.form to get the correct form the submit is into, and data fields to store the last clicked/focused element. I also wrapped submit code inside a timeout to be sure click events happen before it is executed (some users reported in comments that on Chrome sometimes a click event is fired after a submit).
Works when navigating both with keys and with mouse/fingers without counting on browsers to send a click event on RETURN key (doesn't hurt though), I added an event handler for focus events for buttons and fields.
You might add buttons of type="submit" to the items that save themselves when clicked.
In the demo I set a red border to show the selected item and an alert that shows name and value/label.
Here is the FIDDLE
And here is the (same) code:
Javascript:
$("form").submit(function(e) {
e.preventDefault();
// Use this for rare/buggy cases when click event is sent after submit
setTimeout(function() {
var $this=$(this);
var lastFocus = $this.data("lastFocus");
var $defaultSubmit=null;
if(lastFocus) $defaultSubmit=$(lastFocus);
if(!$defaultSubmit || !$defaultSubmit.is("input[type=submit]")) {
// If for some reason we don't have a submit, find one (the first)
$defaultSubmit=$(this).find("input[type=submit]").first();
}
if($defaultSubmit) {
var submitName=$defaultSubmit.attr("name");
var submitLabel=$defaultSubmit.val();
// Just a demo, set hilite and alert
doSomethingWith($defaultSubmit);
setTimeout(function() {alert("Submitted "+submitName+": '"+submitLabel+"'")},1000);
} else {
// There were no submit in the form
}
}.bind(this),0);
});
$("form input").focus(function() {
$(this.form).data("lastFocus", this);
});
$("form input").click(function() {
$(this.form).data("lastFocus", this);
});
// Just a demo, setting hilite
function doSomethingWith($aSelectedEl) {
$aSelectedEl.css({"border":"4px solid red"});
setTimeout(function() { $aSelectedEl.removeAttr("style"); },1000);
}
DUMMY HTML:
<form>
<input type="text" name="testtextortexttest" value="Whatever you write, sir."/>
<input type="text" name="moretesttextormoretexttest" value="Whatever you write, again, sir."/>
<input type="submit" name="test1" value="Action 1"/>
<input type="submit" name="test2" value="Action 2"/>
<input type="submit" name="test3" value="Action 3"/>
<input type="submit" name="test4" value="Action 4"/>
<input type="submit" name="test5" value="Action 5"/>
</form>
DUMB CSS:
input {display:block}
I write this function that helps me
var PupulateFormData= function (elem) {
var arr = {};
$(elem).find("input[name],select[name],button[name]:focus,input[type='submit']:focus").each(function () {
arr[$(this).attr("name")] = $(this).val();
});
return arr;
};
and then Use
var data= PupulateFormData($("form"));
The following code for a browser chat works as a whole, but it's not neat.
<p>chat in silence:</p>
<input id="yousay" name="input" size="52" onkeydown="if (event.keyCode == 13) { doTalk(); }"/>
<p>chat in with music:</p>
<textarea onfocus="clearContents(this);" id="chat" cols="50" rows="2" ></textarea>
<button type="button" onclick="triggerAll();">answer</button>
these are the scripts:
<script src="scripts/soundEngine.js"></script>
<script src="scripts/animationEngine.js"></script>
<script src="scripts/talk.js"></script>
this calls the bot API
<script>
var pb = new Pandorabot("aiaas.pandorabots.com", 'validid', 'validname', 'validid');
function doTalk() {
var input = document.getElementById("yousay").value;
document.getElementById("yousay").value = "";
pb.talk(input, function(data) {
var response = data["responses"];
document.getElementById("response").innerHTML = response;
console.log(response);
});
}
</script>
and this a function to call them all at once:
<script>
function triggerAll(){
doTalk();
play_song();
animate_song();
}
</script>
Apparently, <textarea> calls play_song() and animate_song(), but does not call doTalk()
Is there a way I can put all function calls within one tag and reduce the code?
In html you can call function that calls all of them.
Like you have script one,two,three and you do this
<randomtag onclick="call_all()"></randomtag>
<script type="text/javascript">
function call_all(){
one();
two();
three();
}
</script>
var pb = new Pandorabot("aiaas.pandorabots.com", 'validid', 'validname', 'validid');
arguments here are valid? If this arguments aren't valid then function doTalk() doesn't exist and you can't call them
I have been trying to get an ajax call to work inside a function triggered by an onclick event. When I use event.preventDefault the page is not reloaded but the ajax call does not work, no data is added to my database. When I comment out that line the page is reloaded but everything else works.
function clickFunction(elem) {
var var1 = elem.id;
var var2 = var1.split("_");
// elem.preventDefault();
if (var2[0] == "Add") {
if (var2[1] == "Calls") {
console.log("Calls");
console.log(var1);
event.preventDefault();
var data = $(this).serialize();
$.post('progressSheetDynamic', data).done(function (response){
$(".1").html(parseInt($('.1').html(), 10)+1);
Calls.update(50);
});
}
}
}
Html code
<form action="{{ route("progressSheetDynamic") }}" method="post" id= {{ $addID }}>
<input name="increment" value="increment" type="hidden"> </input>
<input type="hidden" name="id" value= {{$activities}} >
<button type="submit" class="styleHover styleButton" onclick="clickFunction(this)" id= {{ 'Add_'.$newText }}> + </button>
</form>
I have checked the logs and the function is going into the if statement. I have also tried using preventDefault on the button click event, by doing elem.preventDefault(); but this does not work. Neither does using return false.
The issue seems to be with this line:
var data = $(this).serialize();
It should be this instead:
var data = $(elem.form).serialize();
The this value in your function will be a reference to the window object, whereas elem is the button so elem.form will be the form to serialize (assuming that's the data you wanted).
And as noted in the comments, event is only defined as a global variable in some browsers, so you need to pass event in the attribute and receive it in the function to be safe.
Attribute:
onclick="clickFunction(this, event)"
Function:
function clickFunction(elem, event) {
// ...
}
Note that IE8 and lower do not have event.preventDefault(), but you can set event.returnValue = false instead.
event will not be defined because yuo haven't passed it. You're passing the button through with onclick="clickFunction(this).
Change it to onclick="clickFunction(event)".
Then change the function declaration:
function clickFunction(event) {
console.log(event)
...
}
If you want both the button and the event, look at what I have:
<button type="submit" class="styleHover styleButton" onclick="clickFunction(event, this);" />
<script>
function clickFunction(event, elem) {
console.log(event);
console.log(elem);
event.preventDefault();
}
</script>
Elem will be referencing the button when you pass this to clickFunction(this)
But button does not have a preventDefault() function, thus you will get a Uncaught TypeError: elem.preventDefault is not a function
Second, $(this) is referencing window, which should be $(elem.form) instead.
Below is how I fixed your original problem without changing your structure.
Html: (Not passing this in clickFunction)
<button type="submit" class="styleHover styleButton" onclick="clickFunction()" id= {{ 'Add_'.$newText }}> + </button>
Javascript: (use event.target for elem, $(elem.form) for $(this) )
function clickFunction(event) {
var elem = event.target; // event.target will be equivalent to your elem
var var1 = elem.id;
var var2 = var1.split("_");
event.preventDefault();
if (var2[0] == "Add") {
if (var2[1] == "Calls") {
console.log("Calls");
console.log(var1);
event.preventDefault();
var data = $(elem.form).serialize(); // should be elem.form here to get correct data
$.post('progressSheetDynamic', data).done(function (response){
$(".1").html(parseInt($('.1').html(), 10)+1);
Calls.update(50);
});
}
}
}
I'm attempting to use jQuery to capture a submit event and then send the form elements formatted as JSON to a PHP page.
I'm having issues capturing the submit though, I started with a .click() event but moved to the .submit() one instead.
I now have the following trimmed down code.
HTML
<form method="POST" id="login_form">
<label>Username:</label>
<input type="text" name="username" id="username"/>
<label>Password:</label>
<input type="password" name="password" id="password"/>
<input type="submit" value="Submit" name="submit" class="submit" id="submit" />
</form>
Javascript
$('#login_form').submit(function() {
var data = $("#login_form :input").serializeArray();
alert('Handler for .submit() called.');
});
Wrap the code in document ready and prevent the default submit action:
$(function() { //shorthand document.ready function
$('#login_form').on('submit', function(e) { //use on if jQuery 1.7+
e.preventDefault(); //prevent form from submitting
var data = $("#login_form :input").serializeArray();
console.log(data); //use the console for debugging, F12 in Chrome, not alerts
});
});
try this:
Use ´return false´ for to cut the flow of the event:
$('#login_form').submit(function() {
var data = $("#login_form :input").serializeArray();
alert('Handler for .submit() called.');
return false; // <- cancel event
});
Edit
corroborate if the form element with the 'length' of jQuery:
alert($('#login_form').length) // if is == 0, not found form
$('#login_form').submit(function() {
var data = $("#login_form :input").serializeArray();
alert('Handler for .submit() called.');
return false; // <- cancel event
});
OR:
it waits for the DOM is ready:
jQuery(function() {
alert($('#login_form').length) // if is == 0, not found form
$('#login_form').submit(function() {
var data = $("#login_form :input").serializeArray();
alert('Handler for .submit() called.');
return false; // <- cancel event
});
});
Do you put your code inside the event "ready" the document or after the DOM is ready?
Just replace the form.submit function with your own implementation:
var form = document.getElementById('form');
var formSubmit = form.submit; //save reference to original submit function
form.onsubmit = function(e)
{
formHandler();
return false;
};
var formHandler = form.submit = function()
{
alert('hi there');
formSubmit(); //optionally submit the form
};
Just a tip:
Remember to put the code detection on document.ready, otherwise it might not work. That was my case.
$(document).ready(function () {
var form = $('#login_form')[0];
form.onsubmit = function(e){
var data = $("#login_form :input").serializeArray();
console.log(data);
$.ajax({
url: "the url to post",
data: data,
processData: false,
contentType: false,
type: 'POST',
success: function(data){
alert(data);
},
error: function(xhrRequest, status, error) {
alert(JSON.stringify(xhrRequest));
}
});
return false;
}
});
<!DOCTYPE html>
<html>
<head>
<title>Capturing sumit action</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<form method="POST" id="login_form">
<label>Username:</label>
<input type="text" name="username" id="username"/>
<label>Password:</label>
<input type="password" name="password" id="password"/>
<input type="submit" value="Submit" name="submit" class="submit" id="submit" />
</form>
</body>
</html>