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Disable form submit button if all input and textarea are empty except one

I need to enable a submit button only when each input fields has a value except one. The except one.
HTML:
// start of form
<input type='text /> // cant be blank
<input type='text /> // cant be blank
<input type='text /> // cant be blank
<textarea type='text /> // cant be blank
<button type='submit'>Submit</button>
// end of form
<input id='subscription-input' type='text /> // exclude this one only
[...]
JS:
function doCheck(){
var allFilled = true;
$('input[type=text]').not('#subscription-input').each(function(){
if($(this).val() == ''){
return false;
}
});
if (allFilled) {
// Apply active css and enable button
$('button[type=submit]').removeClass('form-submit--plain').addClass('form-submit--active');
$('button[type=submit]').prop('disabled', !allFilled);
}
}
$(document).ready(function(){
$('input[type=text]').keyup(doCheck).focusout(doCheck);
});
Basically I need a way to get the textarea field so I thought adding wilecard (*) would work:
$('*[type=text]').not('#subscription-input').each(function(){...}
How to get the input and textarea fields?

Apply the same class to all the fields and attach event to that class with a not for the ID:
function doCheck() {
var allFilled = true;
$('.form-fields:not(#subscription-input)').each(function() {
if ($(this).val() == '') {
allFilled = false;
}
});
$('button[type=submit]').prop('disabled', !allFilled);
if (allFilled) {
$('button[type=submit]').removeAttr('disabled');
}
}
$(document).ready(function() {
doCheck();
$('.form-fields').keyup(doCheck);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type='text' class='form-fields' />
<input type='text' class='form-fields' />
<input type='text' class='form-fields' />
<textarea class='form-fields'></textarea>
<input id='subscription-input' class='form-fields' type='text' />
<button type='submit'>Submit</button>

change code to:
function doCheck(){
var allFilled = true;
$('input[type=text]:not(#subscription-input),textarea').each(function(){
if($(this).val() == ''){
allFilled=false;
}
});
if (allFilled) {
// Apply active css and enable button
$('button[type=submit]').removeClass('form-submit--plain').addClass('form-submit--active');
$('button[type=submit]').prop('disabled', !allFilled);
}
}
$(document).ready(function(){
$('input[type=text]').keyup(doCheck).focusout(doCheck);
});

Here you go with the solution https://jsfiddle.net/ehjxvz4j/1/
function doCheck(){
var allFilled = true;
$('input[type=text]').not('#subscription-input').each(function(){
if($(this).val() == ''){
allFilled = false;
}
});
if($('textarea').val() == ''){
allFilled = false;
}
if (allFilled) {
// Apply active css and enable button
$('button[type=submit]').removeClass('form-submit--plain').addClass('form-submit--active');
}
$('button[type=submit]').prop('disabled', !allFilled);
}
$(document).ready(function(){
$('input[type=text], textarea').focusout(doCheck);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type='text' />
<input type='text' />
<input type='text' />
<textarea></textarea>
<button type='submit' disabled>Submit</button>
<input id='subscription-input' type='text'/>

If I check 2 input radio the disabled Submit button enables, but if I uncheck them...the Submit button doesn't disable back

I just need a little help with this code.
var prv3;
var markIt3 = function(e) {
if (prv3 === this && this.checked) {
this.checked = false;
prv3 = null;
} else {
prv3 = this;
}
};
$(function() {
$('input.class_x').on('click', markIt3);
});
$('input[type=radio]').on('change', function() {
var current = $('input.class_x').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
if (current.length > 1) {
sbmtBtn.disabled = false;
} else {
sbmtBtn.disabled = true;
}
}).change();
My request is the following:
can anybody just FIX what is missing in order for the form Submit button to go back to be disabled as it is supposed to be, because this form only enables it when 2 input type radio have been checked?
This form previous description is the main idea of everything:
A form, with several input type radios. Check at least 2 and the Submit button enables. But if you uncheck any of them, the Submit button should disable back, but I cannot manage to achieve this PART.
I just need a little HELP with IT, nothing else.
Please, DON'T change my code too much!Can it be done?
Check the fiddle right here: https://jsfiddle.net/Suiberu/70tkgk5t/13/
Thanks!

Actually problem is deselecting radio button not detected as a change. How about this
var prv3;
var markIt3 = function(e) {
if (prv3 === this && this.checked) {
this.checked = false;
prv3 = null;
} else {
prv3 = this;
}
checkIfValid();
};
$(function() {
$('input.class_x').on('click', markIt3);
});
function checkIfValid() {
var current = $('input.class_x').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
if (current.length > 1) {
sbmtBtn.disabled = false;
} else {
sbmtBtn.disabled = true;
}
};
input {
display: block;
margin: 0.5em 0;
}
input[type='submit']:disabled {
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form name="myform" autocomplete="off" method="post">
<input class="class_x" type="radio" name="name_1" value="value_1" id="id_1" />
<input class="class_x" type="radio" name="name_2" value="value_2" id="id_2" />
<input class="class_x" type="radio" name="name_3" value="value_3" id="id_3" />
<input type="submit" name="name_submit" value="OK" class="class_submit" id="SubmitButton" required/>
</form>

Or you can change the type of your inputs to checkBoxes and it will simply do the magic.
Here is the JSFiddle link.
var prv3;
var markIt3 = function (e) {
if (prv3 === this && this.checked) {
this.checked = false;
prv3 = null;
} else {
prv3 = this;
}
};
$(function () {
$('input.class_x').on('click', markIt3);
});
$('input[type=checkbox]').on('change', function () {
var current = $('input.class_x').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled=true;
if (current.length > 1) {
sbmtBtn.disabled = false;
} else {
sbmtBtn.disabled = true;
}
}).change();
input {
display: block;
margin: 0.5em 0;
}
input[type='submit']:disabled {
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form name="myform" autocomplete="off" method="post">
<input class="class_x" type="checkbox" name="name_1" value="value_1" id="id_1" />
<input class="class_x" type="checkbox" name="name_2" value="value_2" id="id_2" />
<input class="class_x" type="checkbox" name="name_3" value="value_3" id="id_3" />
<input type="submit" name="name_submit" value="OK" class="class_submit" id="SubmitButton" required />
</form>
Only the type has been changed from radio button to checkbox.

this.checked = false
..does not fire the change event, so the change code doesn't get fired when a radio button is unchecked.
Add the following line of code after that line:
$(this).change();
That will fire the change code.

Try using .prop() function instead
$('input[type=radio]').on('change', function() {
var current = $('input.class_x').filter(':checked');
var $sbmtBtn = $('#SubmitButton');
$sbmtBtn.prop('disabled', true);
if (current.length > 1) {
$sbmtBtn.prop('disabled', false);
} else {
$sbmtBtn.prop('disabled', true);
}
}).change();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<input type="radio" class="class_x">
<input type="radio" class="class_x">
<input id="SubmitButton" type="submit">
</form>
.prop() documentation

Disable submit button until all form inputs have data

I'm trying to disable the submit button until all inputs have some data. Right now the button is disabled, but it stays disabled after all inputs are filled in. What am I doing wrong?
$(document).ready(function (){
validate();
$('input').on('keyup', validate);
});
function validate(){
if ($('input').val().length > 0) {
$("input[type=submit]").prop("disabled", false);
} else {
$("input[type=submit]").prop("disabled", true);
}
}

Here's a modification of your code that checks all the <input> fields, instead of just the first one.
$(document).ready(function() {
validate();
$('input').on('keyup', validate);
});
function validate() {
var inputsWithValues = 0;
// get all input fields except for type='submit'
var myInputs = $("input:not([type='submit'])");
myInputs.each(function(e) {
// if it has a value, increment the counter
if ($(this).val()) {
inputsWithValues += 1;
}
});
if (inputsWithValues == myInputs.length) {
$("input[type=submit]").prop("disabled", false);
} else {
$("input[type=submit]").prop("disabled", true);
}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text"><br>
<input type="text"><br>
<input type="text"><br>
<input type="submit" value="Join">

Vanilla JS Solution.
In question selected JavaScript tag.
HTML Form:
<form action="/signup">
<div>
<label for="username">User Name</label>
<input type="text" name="username" required/>
</div>
<div>
<label for="password">Password</label>
<input type="password" name="password" />
</div>
<div>
<label for="r_password">Retype Password</label>
<input type="password" name="r_password" />
</div>
<div>
<label for="email">Email</label>
<input type="text" name="email" />
</div>
<input type="submit" value="Signup" disabled="disabled" />
</form>
JavaScript:
var form = document.querySelector('form')
var inputs = document.querySelectorAll('input')
var required_inputs = document.querySelectorAll('input[required]')
var register = document.querySelector('input[type="submit"]')
form.addEventListener('keyup', function(e) {
var disabled = false
inputs.forEach(function(input, index) {
if (input.value === '' || !input.value.replace(/\s/g, '').length) {
disabled = true
}
})
if (disabled) {
register.setAttribute('disabled', 'disabled')
} else {
register.removeAttribute('disabled')
}
})
Some explanation:
In this code we add keyup event on html form and on every keypress check all input fields. If at least one input field we have are empty or contains only space characters then we assign the true value to disabled variable and disable submit button.
If you need to disable submit button until all required input fields are filled in - replace:
inputs.forEach(function(input, index) {
with:
required_inputs.forEach(function(input, index) {
where required_inputs is already declared array containing only required input fields.
JSFiddle Demo: https://jsfiddle.net/ydo7L3m7/

You could try using jQuery Validate
http://jqueryvalidation.org/
<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.9/jquery.validate.js"></script>
And then do something like the following:
$('#YourFormName').validate({
rules: {
InputName1: {
required: true
},
InputName2: { //etc..
required: true
}
}
});

Refer to the sample here.
In this only input of type="text" has been considered as described in your question.
HTML:
<div>
<form>
<div>
<label>
Name:
<input type="text" name="name">
</label>
</div>
<br>
<div>
<label>
Age:
<input type="text" name="age">
</label>
</div>
<br>
<div>
<input type="submit" value="Submit">
</div>
</form>
</div>
JS:
$(document).ready(function () {
validate();
$('input').on('keyup check', validate);
});
function validate() {
var input = $('input');
var isValid = false;
$.each(input, function (k, v) {
if (v.type != "submit") {
isValid = (k == 0) ?
v.value ? true : false : isValid && v.value ? true : false;
}
if (isValid) {
$("input[type=submit]").prop("disabled", false);
} else {
$("input[type=submit]").prop("disabled", true);
}
});
}

Try to modify your function like this :
function validate(){
if ($('input').val() != '') {
$("input[type=submit]").prop("disabled", false);
} else {
$("input[type=submit]").prop("disabled", true);
}
}
and place some event trigger or something like onkeyup in jquery.But for plain js, it looks like this :
<input type = "text" name = "test" id = "test" onkeyup = "validate();">
Not so sure of this but it might help.

Here is a dynamic code that check all inputs to have data when wants to submit it:
$("form").submit(function(e) {
var error = 0;
$('input').removeClass('error');
$('.require').each(function(index) {
if ($(this).val() == '' || $(this).val() == ' ') {
$(this).addClass('error');
error++;
}
});
if (error > 0) {
//Means if has error:
e.preventDefault();
return false;
} else {
return true;
}
});
.error {
border: 1px solid red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<form>
<form action="google.com">
<input type="text" placeholder="This is input #1" class="require" />
<input type="text" placeholder="This is input #2" class="require" />
<input type="submit" value="submit" />
</form>
</form>
Now you see there is a class called require, you just need to give this class to inputs that have to have value then this function will check if that input has value or not, and if those required inputs are empty Jquery will prevent to submit the form!

Modify your code
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js" type="text/javascript"></script>
<input type="text"><br>
<input type="text"><br>
<input type="text"><br>
<input type="submit" value="Join">
<script>
$(document).ready(function (){
validate();
$('input').on('keyup', validate);
});
function validate(){
$("input[type=text]").each(function(){
if($(this).val().length > 0)
{
$("input[type=submit]").prop("disabled", false);
}
else
{
$("input[type=submit]").prop("disabled", true);
}
});
}
</script>

function disabledBtn(_className,_btnName) {
var inputsWithValues = 0;
var _f = document.getElementsByClassName(_className);
for(var i=0; i < _f.length; i++) {
if (_f[i].value) {
inputsWithValues += 1;
}
}
if (inputsWithValues == _f.length) {
document.getElementsByName(_btnName)[0].disabled = false;
} else {
document.getElementsByName(_btnName)[0].disabled = true;
}
}
<input type="text" class="xxxxx" onKeyUp="disabledBtn('xxxxx','fruit')"><br>
<input type="text" class="xxxxx" onKeyUp="disabledBtn('xxxxx','fruit')"><br>
<input type="text" class="xxxxx" onKeyUp="disabledBtn('xxxxx','fruit')"><br>
<input type="submit" value="Join" id="yyyyy" disabled name="fruit">

How to checked checkbox main when sub checkbox not checked?

How to checked checkbox main when sub checkbox not checked ?
When checkbox id="checkItem1" and id="checkItem2" and id="checkItem3" not checked,
i want to auto checked checkbox id="checkAll" how can i do that ?
http://jsfiddle.net/peap/sydzL8Lc/11/
<input type="checkbox" id="checkAll" checked > Check All
<hr />
<input type="checkbox" id="checkItem1"> Item 1
<input type="checkbox" id="checkItem2"> Item 2
<input type="checkbox" id="checkItem3"> Item3

you can do it like bellow
$('input[id^="checkItem"]').change(function(){
if($('input[id^="checkItem"]:checked').length===0)
$('#checkAll').prop('checked',true);
})
DEMO

I did a JSFiddle on the full functionality you will need including including when user click the checkAll all boxes change to checked if checkAll is checked or to not checked otherwise. Also there's a on change listener on each of them to listen if the user check all of them and to change the checkAll to checked and backwards.
HTML:
<input type="checkbox" id="checkAll"> Check All
<hr />
<div class='js-checkboxes'>
<input type="checkbox" id="checkItem1"> Item 1
<input type="checkbox" id="checkItem2"> Item 2
<input type="checkbox" id="checkItem3"> Item3
</div>
Javascript:
$('.js-checkboxes > input').on('change', function() {
var isAllChecked = true;
$('.js-checkboxes > input').each(function() {
if (!this.checked) {
isAllChecked = false;
}
});
if (isAllChecked) {
$('#checkAll')[0].checked = true;
} else {
$('#checkAll')[0].checked = false;
}
});
$('#checkAll').on('change', function() {
if (this.checked) {
$('.js-checkboxes > input').each(function() {
this.checked = true;
});
} else {
$('.js-checkboxes > input').each(function() {
this.checked = false;
});
}
});

$("input[id^='checkItem']").change(function(){
if(!$("#checkItem1").is(":checked") && !$("#checkItem2").is(":checked") && !$("#checkItem3").is(":checked"))
{
$("#checkAll").prop("checked",true)
}
}
EDIT :- DEMO

CheckBox and JavaScript code

I want to create javascript code that will save all checkbox that user clicked and when user click on button finish, code will show him what he chose.(Text in label )
Honestly I do not have an idea and need help.
Is that possible to achieve on this way :
<html>
<script>
function test()
{
if(document.getElementById("chk").checked)
{
// save in some variable nad print on the end.. That is my problem.. and i have no idea.
}
}
</script>
<body>
<input type="checkbox" id="chk">
<label>someTXT</label>
<input type="button" onclick="test();"></input>
</input>
</body>
</html>

Exmaple to return all checked checkboxes (if you have more than one):
test = function() {
var checkboxesIDs = '';
var inputs = document.getElementsByTagName("input");
for (var i=0; i<inputs.length; i++) {
if (inputs[i].type == "checkbox") {
if(inputs[i].checked == true) {
checkboxesIDs+= inputs[i].id +", ";
}
}
}
alert(checkboxesIDs);
}
and HTML:
<input type='checkbox' id='c1' />
<input type='checkbox' id='c2' />
<input type='checkbox' id='c3' />
<input type='checkbox' id='c4' />
<input type='button' onclick="test();" value="Test" />
DEMO: http://jsfiddle.net/47EdX/

Here's a short example that figure out how to get this:
JS Function to check through checkboxes:
function checkAll(bx) {
var cbs = document.getElementsByTagName('input');
for(var i=0; i < cbs.length; i++) {
if(cbs[i].type == 'checkbox') {
cbs[i].checked = bx.checked;
}
}
}
HTML
<input type="checkbox" onclick="checkAll(this)">
You have to complement with some Array or object that will stores some value to push into the server.
Hope this helps.

$("input[type='button']").click(function(){
$cb = $("input[type='checkbox']").prop("checked");
$cb.each(function(){
alert($(this).attr("id"));
});
});
That's the way to access ALL checkboxes on your page and popup each id. You can also show any other attribute of your checkboxes like value or name.