e.preventdefault breaking non active buttons - javascript

I have a form with multiple save buttons per customer request along with a few other buttons. When they click a save button, a confirm box opens. If they select cancel the intent is to prevent the form from submitting. However, when a user tries to select a save button other than the save button they just pressed nothing happens.
$("form").submit(function (e) {
var $btn = $(document.activeElement);
if ($btn.attr("value") == "Save") {
var c = confirm("Did you review the suicide related issues, signs and factors for currency?");
if (!c) {
$btn.css('filter', 'none');
e.preventDefault();
} else {
return true;
}
}
});

I have some issues with the code:
1- using activeElement seems dicey, I would switch to target
id.
To Clarify this point: from this answer: Just a note to keep things current. As of right now, Safari sets activeElement to the document body when clicking on a submit button. I ran into this issue on Safari 9.1
2- After checking the button is a save, prompt for confirm and then call .submit(handler) etc
I couldn't reproduce your behavior on pc, on mac there are bugs so it won't even run
Edit:
Here's what I propose instead:
$(":button").click(function(e) {
if (e.target.value == "Save") {
var c = confirm("Did you review the suicide related issues, signs and factors for currency?");
if (!c) {
console.log('form not submited');
} else {
$("form").submit(function() {
console.log('Form Submited');
});
}
}
});
And the HTML:
<form>
<button value ="Save" type="submit" name="button_1">Button #1</button>
<button value ="Save" type="submit" name="button_2">Button #2</button>
<button value ="Save" type="submit" name="button_3">Button #3</button>
<button value ="Save" type="submit" name="button_4">Button #4</button>
<button value ="Save" type="submit" name="button_5">Button #5</button>
<button value ="Save" type="submit" name="button_6">Button #6</button>
</form>
In Codepen

Related

How to pass clicked button value to javascript on form submit [duplicate]

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"));

Disable AddEventListener On Submit

I am trying to disable the function I pass to addEventListener when the user clicks on submit. I put code in to prevent user from leaving page if they have entered data on any of the fields. This works fine. If the user tries to navigate away they get a warning as expected. However, I can't seem to figure out how to disable this feature once all of the fields are populated and the user clicks submit. As it stands, they are prompted to make sure they want to navigate away when they click on submit and I don't want this to happen when the user clicks submit.
I've tried something like the below, to try to unbind the beforeunload function based on submit, but this isn't working. I feel like this is the right general idea, but I'm struggling to make this work as I want it to.
$('form').submit(function() {
$(window).unbind('beforeunload');
});
$(window).on('beforeunload',function(){
return '';
});
The code below works as expected:
window.addEventListener('beforeunload', function (event) {
console.log('checking form');
let inputValue = document.querySelector('#myInput').value;
if (inputValue.length > 0) {
console.log(inputValue);
event.returnValue = 'Are you sure you wish to leave?';
}
event.preventDefault();
});
If the user clicks submit I want the beforeunload function to be turned off essentially.
Was able to solve this problem using the suggestion that was made by Bipperty via this SO issue...Narrow Down BeforeUnload To Only Fire If Field Is Changed or Updated. Ultimately the code below is what I used to turn off beforeunload when submitting the form....
var submitting = false;
window.addEventListener("beforeunload", function (event) {
console.log('checking form');
let inputValue = document.querySelector('#myInput').value;
if(inputValue.length > 0 && submitting === false) {
console.log(inputValue);
event.returnValue = 'Are you sure you wish to leave?';
}
event.preventDefault();
});
document.addEventListener("submit", function(event) {
submitting = true;
});
If you bind a handler using .on() you can remove the bound event using .off()
$('form').submit(function() {
$(window).off('beforeunload');
});
$(window).on('beforeunload',function(){
return '';
});
However, I feel in your scenario you don't really need the beforeunload at all if you handle your form submit logically.
I've mocked up an example of how you can logically submit the form if a user chooses to submit the form based on a condition (in this case if all fields aren't filled).
$('form').on('submit', function (e) {
var inputs = $(':text', this);
console.log(inputs.length)
var validInputs = inputs.filter(function () {
return $(this).val().length;
}).length;
if (validInputs > 0 && validInputs < inputs.length) {
var r = confirm("Are you sure you want to leave?");
if (!r) e.preventDefault()
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form action="http://google.com" method="get">
<input name="a" placeholder="Input 1">
<input name="b" placeholder="Input 2">
<input name="c" placeholder="Input 3">
<button type="submit">Submit</button>
</form>
Update
To prompt the user before leaving a form:
window.onbeforeunload = function(){
return 'Are you sure you want to leave?';
};
See this post
Use the required attribute on each field and you won't need to do all of that. The following demo will refuse any attempts to submit it's form if there's a blank field. It will send to a live test server and a response will be displayed verifying a successful submission.
Demo
window.onbeforeunload = function(){
return 'Are you sure you want to leave?';
};
label {
display: inline-block;
width: 75px
}
[type=submit] {
margin-left: 200px
}
<form id='form' action='http://httpbin.org/post' method='post' target='response'>
<label>Name: </label><input name='Name' type='text' required><br>
<label>Cell: </label><input name='Cell' type='tel' required><br>
<label>Date: </label><input name='Date' type='date' required><br>
<input type="submit">
</form>
<iframe src='about:blank' name='response'></iframe>

Button unexpectedly submitting form

So, I'm building a form where you select a date, then you can add timeslots to that date to schedule things. Something like this:
<form name="NewForm" ng-submit="submitForm(NewForm)">
<form-group>
<angular-ui datepicker>
<button ng-click="addRow()">
</form-group>
<form-group ng-repeat="timepicker in timepickers track by $index">
<angular-ui timepicker>
<select box for tasks to pick from>
<button class="btn btn-danger" ng-click="deleteRow($index)">
</form-group>
<button type="submit" class="btn btn-primary">
</form>
Then in the controller I have:
$scope.timepickers = []
$scope.addRow = function() {
$scope.timepickers.push({ some default object data to fill out the row });
}
$scope.deleteRow = function(index) {
$scope.timepickers.splice(index, 1);
}
$scope.submitForm(form) {
if ($scope.timepickers.length < 1) {
//do some stuff and don't send the form
}
else if (form.$valid) {
//send form data to api
}
else {
//do some other stuff and don't send the form
}
}
The delete button was the last thing I added, and everything was working fine before I added it. The problem, however, is that sometimes when I push the delete button on a row, it submits the form and for the life of me I can't figure out why.
If I only have 1 or 2 'rows' it works fine. The delete button deletes the row and I can keep adding new rows, etc. If I have more than 2 rows added, though, AND I try to delete one of the rows in the middle (ie where if I checked if '$middle == true' in the ng-repeat), then it deletes the row and calls the submitForm function.
I know it actually runs through the submitForm function because if I don't fill out the form completely, then the validation stuff still triggers and the submit doesn't go through.
Anyone have any ideas?
You need to add the attribute of type button:
<button class="btn btn-danger" ng-click="deleteRow($index)" type="button">

JavaScript onsubmit preventDefault not working conditionally

If I use e.preventDefault() into onsubmit it is prevents form submission. But if I use it conditionally it doesn't work. See below code:
var register = document.getElementById('registerForm');
register.onsubmit = function(e){
e.preventDefault(); //it is working
}
register.onsubmit = function(e){
if(5==5){
e.preventDefault(); // it is not working
}
}
<form action="#" id="registerForm">
<input type="text" id="username">
<input type="submit" id="submitBtn">
</form>
That code's working fine. But, some other event is not allowing it to run. Could be some Console errors too. But, if you wanna break the flow, you can also do this:
register.onsubmit = function (e) {
if (5 == 5) {
return false;
}
}
But remember, the above code will break all the further instructions attached to the particular event after this is executed.
Try this. I use it in Nette Framework and it works. But you have to create "fake button" and hide the real submit button.
HTML:
<form method="post" id="registerForm">
<input type="button" id="fakeSubmitButton" />
<input type="submit" id="submit" style="visibility:hidden" />
<form>
JS:
var register = document.getElementById('registerForm');
var fakeBtn = document.getElementById('fakeSubmitBtn');
fakeBtn.click(function(e) { //user clicks on the fake submit button
if ( 5==5 ) {
e.preventDefault();
} else {
register.submit(); //call submit on real submit button
}
});
Why not debug by adding breakpoints if you think something is strange in those lines?
Or put the code you are suspecting in try catch block and see if catch gets invoked.
Because 5==5 will always be true and that if condition doesn't makes a difference.

Display Alert if Checkbox is unchecked and text field is not empty

I have this form when information is being store into DB. I have a checkbox and a text field. Either one are required, but if the text field isn't empty, there's a good chance the checkbox should be checked. So I'd like to display an Alert if the Text Field has a value in it, and the checkbox isn't checked. I'd like this alert to appear when hitting the Submit button. Here's my form:
<form id="form" name="form" action=?post=yes" method "post">
<input type="checkbox" name="close" id="close" value="Yes"><label for="close" title="Close this RMA">Close this RMA</label>
<label><input type="text" name="dateshipped" id="dateshipped"/></label>
<button type="submit">Save and Continue</button>
</form>
So if checkbox "close" IS NOT checked AND "dateshipped" IS NOT NULL, then display alert when click Submit.
Thank you.
you can do a javascript function to be called on the onclick event in the submit button , like this
<button type="submit" onclick="callAfunction();">Save and Continue</button>
and define the function
callAfunction()
{
//do the checks with: document.getElementById('close').value
// display an alert("a message");
}
Would something like this work?
onsubmit="return validate();" // add to your form tag
function validate() {
checkbox = document.getElementById('myCheckbox').value;
if (!checkbox) {
alert('checkbox is empty');
return false;
} else {
return true;
}
}
Something like this perhaps?
Button for submitting. It runs validateSubmit. It only submits if the function is true.
<input type="button" value="submit" onsubmit="return validateSubmit();" />
Here's the validate function. It gets the value of the checkbox and the text. If they're both falsy then it sets valid to a confirm box. The confirm box allows the user to select ok or cancel and returns true or false based on that.
function validate() {
var valid = true;
var checkbox = document.getElementById('checkboxID').value;
var text = document.getElementById('textBox').value;
if(!(checkbox || text))
valid = confirm("Checkbox and text are empty. \n Continue?");
return valid;
}
The condition could be written as (!checkbox && !text), however I find it simpler to read to only use one ! if I can. The rule is called De Morgan's law if you're interested.
If you're using jQuery, things become easier.
var checkbox = $('#checkboxID').prop( "checked" );
var text =$('#textBox').val();
Plus you can attach even handlers like this:
$(document).ready(function() {
$('#btnSubmit').on('click', validate);
});
Let me know if you have any questions.
** Following code working for me, At first you need to add a onclick="functionName();" then do the following code**
function myCkFunction() {
var checkBox = document.getElementById("close");
if (checkBox.checked == true){
alert('checked');
} else {
alert('Unchecked');
}
}

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