I have a html form that has a hidden field. Upon hitting submit, I want the hidden field to be populated with the value entered in another field before it gets to form validation.Is there a way I can do that in Javascript?
HTML code:
<form>
Email: <input type="text" name="email"><br>
<input type="hidden" name="retype-email">
<input type="submit" value="Submit">
</form>
JSfiddle: http://jsfiddle.net/x1r8sunh/
Given the HTML you posted, this should work:
$('form').on('submit', function(e){
$('[name="retype-email"]').val($('[name="email"]').val());
});
Example Here
Pure JS option:
document.forms[0].addEventListener('submit', function(){
document.querySelector('[name="retype-email"]').value = document.querySelector('[name="email"]').value;
});
Example Here
You will probably want to use ids or classes to select the elements. The above JS will probably conflict with other elements - change accordingly.
Related
I have three inputs in the following form. Two inputs type is text and another one input type is hidden. Now when I click the submit button then two input values need to set the hidden input before run the ajax query. Because, ajax will get the data from the hidden input only. I have tried it myself but, it's not working for me. Now, when I click the submit ajax working first then set the both values to hidden input.
<form>
<input type="text" class="date" value="2018-11-09">
<input type="text" class="time" value="15:00:00">
<input type="hidden" class="date-time" value="">
<button type="button" class="button">Submit</button>
</form>
For the following code I am assuming that the 'Submit' button has its type changed to 'submit' as this will give you more control of when the form is submitted:
$('form').submit(function(event) {
event.preventDefault(); // stop the form from automatically submitting
$('.date-time').val($('.date').val() + $('.time').val());
console.log($('input[type=hidden').val());
// call your ajax here
});
The important line here for your question is:
$('.date-time').val($('.date').val() + $('.time').val());
This sets the value of the input .date-time to the input of .date and .time, although I would recommend using ids instead of classes as they are unique
I have a form on a Website, and then another form inside of a Bootstrap modal.
The main form has certain fields e.g "Neck, Chest, Waist" while the form inside of the modal has only one e-mail field.
I'm planning to add some "hidden" inputs into the secondary form named "chest, waist" etc and I would like the main form field's value to be passed into the secondary form's hidden inputs as that's the one which is actually going to be submitted.
Is it possible without javascript? If not, I'd prefer some jQuery solution as it must be something pretty minor but I just can't figure it out.
Just copy the values of the form to the form with hidden inputs when it is submitted. Copying on keyup is unnecessary.
<form id="form1">
Input
<input type="text" id="input"/>
<button type="submit">Submit</button>
</form>
<form id="form2">
<input type="text" id="input2"/>
</form>
<script>
document.getElementById("form1").addEventListener("submit", (e)=>{
e.preventDefault();
document.getElementById("input2").value = document.getElementById("input").value;
document.getElementById("form2").submit();
});
</script>
I've got a small-big problem with ajax. Let's describe the situation:
I've got a form with submit=javascript:function()
function will call AJAX with some values, and on success I want to append some content with 'required' input to existing form.
I was trying many things, most from: How to set HTML5 required attribute in Javascript? , but still cannot reach it.
example code:
<form id="myFormID" action="javascript:mycustomsubmit()">
<input type="text" id="add" style="margin:2px;" required>
<input type="submit" name="add" value="Add" class="btn btn-primary">
<textarea rows="5" id="custom_add"></textarea>
(...) on ajax success clear form values and insert new required input:
$("#add").val('');
$("#add").after('<input name="anotherinput" type="text" required>');
so after this my html code looks like this:
<form id="myFormID" action="javascript:mycustomsubmit()">
<input type="text" id="add" style="margin:2px;" required>
<input name="anotherinput" type="text" required="">
<input type="submit" name="add" value="Add" class="btn btn-primary">
<textarea rows="5" id="custom_add"></textarea>
</form>
And in fact it is (with this difference, that new input has required=""), but this new input is not required at all - I can send form even if this input is empty. I was trying to do it by append required, required="required", required=true, required="true", by append just input and then jQuery .prop or/and .attr, by JS examples from link - but it is still not working.
2nd question: After ajax append content and clear values I've got red border around required input field - is there any simple way to remove it (but to show this border and info if user will try to send form with this input empty) in FF,Chrome,IE ?
First post here...
Thanks in advance for any advices!
edit:
what is interesting: when I've submitted my form few times (so I've got few input fields) and I executed $("input").attr('required',true).prop('required', false); then obviously form haven't got any required inputs. However when I've executed it with prop "true" then only original input is really required, all added by append still can be empty...
This is a question consisting of multiple questions. So I'll try to identify and answer them separately.
How to append a new input field after your input field with ID "add" on submitting the form?
Try this instead (your selector was wrong):
$("#add").val('');
$("#add").after('<input name="anotherinput" type="text" required>');
How do I get rid of the red border?
I suggest that you use jQuery to handle the form submit (not tested):
$('#myFormID').submit(function(e) {
// Checking if all required fields are filled out.
if (!e.target.checkValidity()) {
// TODO: Not all required fields are filled out. Do something e.g. adding your new input field?
// Preventing form submit to continue. I think this should prevent the red border. Not tested though...
e.preventDefault();
}
else {
// Everything is OK. Do whatever is needed.
}
});
I'm not sure if I got your questions, but I hope it helps.
Try this,
$("input").attr('required',true);
or
$("#name_add").attr('required',true);
I have a html form with a hidden field and 2 submit buttons. Based on what button in clicked ( trial or buy) I need to set the promo code field ( with "trial" as promo code for trial button and "buy "as promo code for buy button.
I am not sure how I could read what button is clicked in java script. I have a java script already in place that is copying email ID into another field on hitting submit. I'd like integrate the java script with existing one.
HTML code:
<form>Email:
<input type="text" name="email">
<br>
</label><input type ="hidden" name="retype-email">
<br>
<input type="hidden" name="PromoCode" value="" method="post">
<input class="Orange_button" type="submit" value="Start my free trial">
<input class="green_button" type="submit" value="Buy it now">
</form>
JS Fiddle: http://jsfiddle.net/x1bdgvyt/3/
It looks like the best solution is to manually track which button was clicked by subscribing to their "click" events.
Working Example here (jsFiddle)
HTML
<form>Email:
<input type="text" name="email">
<br>
</label><input type ="hidden" name="retype-email">
<br>
<input id="promo-code" type="hidden" name="PromoCode" value="" method="post">
<input class="Orange_button" type="submit" value="Start my free trial" data-code="trial"/>
<input class="green_button" type="submit" value="Buy it now" data-code="buy"/>
</form>
JavaScript
$('form').on('submit', function(e){
$('[name="retype-email"]').val($('[name="email"]').val());
var value = $("input[type=submit][clicked=true]").data("code");
$("#promo-code").val(value);
alert(value);
e.preventDefault()
});
$("form input[type=submit]").click(function() {
$("input[type=submit]", $(this).parents("form")).removeAttr("clicked");
$(this).attr("clicked", "true");
});
Note that I added a data attribute to the submit buttons so that we can store the code that should be added.
source: jQuery: how to get which button was clicked upon form submission?
First, add 'data-type' (or whatever the name, most important is the prefix data-) to your inputs:
HTML
<input data-type="trial" class="Orange_button" type="submit" value="Start my free trial">
<input data-type="buy" class="green_button" type="submit" value="Buy it now">
Then, change a bit your javascript in order to grab the data-type value and populate your field with it:
Javascript
$('[type="submit"]').on('click', function(e) {
// populate your duplicated 'email' field
$('[name="retype-email"]').val($('[name="email"]').val());
// populate your 'code' field : grab the data-type attribute added in your HTML
$('[name="PromoCode"]').val($(this).data('type'));
// finally, submit the form
$('form').submit();
});
Quick warning: you should consider using IDs or classes instead of working with wide selectors like [attr], it could be an issue if you have more than one form in your page (and it's a better practice anyway)
Here is my solution:
$('#usuario_form').submit(function(e){
console.log($('#'+e.originalEvent.submitter.id));
e.preventDefault();
});
You can have access to OriginalEvent Submitter Id to identify wich button was clicked
I have a HTML page containing a form. I want to make some fields "required". The problem is that I'm not using a <input type="submit"> in my form, instead, I use a Javascript function to submit the form because I need to send a Javascript variable to my server. Here is my code:
<form action="/toServer">
Username: <input type="text" name="usrname" required>
<input type="button" onclick="submitForm(this.form)" value="Submit">
</form>
var submitForm = function(frm){
var qstNbr = document.getElementById('hiddenField');
qstNbr.value = someJsVariable;
frm.submit();
}
So, Even is I have the required attribute in my input but the form is still being submitted even if I don't enter anything in the input.
Here is a JSFiddle of how I want my form to behave when clicking on the button without entering anything.
Anyone knows how form.submit() is different from having an <input> of type="submit" ?
EDIT: After following user2696779's answer and doing a little modification, here's the final working code:
<form action="/toServer">
Username: <input type="text" name="usrname" required>
<input type="submit" onclick="submitForm(this.form)" value="Submit">
</form>
var submitForm = function(frm){
if (frm.checkValidity()) {
var qstNbr = document.getElementById('hiddenField');
qstNbr.value = someJsVariable;
frm.submit();
}
}
Your current HTML input button isn't a submit type, it's a button type. The requred attribute on your input element is therefore ignored. To change this, change your button's type to submit:
<input type="submit" value="Submit">
Browsers which support the required attribute will now display a warning when the button is clicked:
JSFiddle demo.
Submitting using javascript will not trigger any validation. If you want to submit using a regular button + javascript and still have validation, you may use HTML5's checkValidity function to verify form fields, or the entire form.
For example, using JQuery:
if(!$('form')[0].checkValidity()) {
alert('not valid');
}
else {
$('form').submit();
}
See fiddle for working example: http://jsfiddle.net/8Kmck/2/