I've run into a bit of an issue. Here's a brief explanation.
I have 8 check boxes on a standard form. What I need to do is loop through each value checked checkbox in var .
But i got always the same value of the first checbox?
So far, I've got this bit of code.
var ref_idee = "";
$('.ajaxupdate:checked').each(function () {
var sThisVal = $( this.checked ).val();
//var sThisVal = (this.checked ? $('.ajaxupdate').val());
ref_idee += (ref_idee=="" ? sThisVal : "," + sThisVal);
});
console.log (ref_idee);
Apart from the typo $(this.checked ).val(); instead of $(this).val();, you still have remnants of a useless and incorrect ternary only needed when all checkboxes were retrieved instead of only the checked ones
The complete code could be
var ref_idee = [];
$('.ajaxupdate:checked').each(function() {
ref_idee.push(this.value);
});
console.log(ref_idee.join(","));
//Or simpler
ref_idee = $('.ajaxupdate:checked').map(function() {
return this.value;
}).get();
console.log(ref_idee.join(","));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<input type="checkbox" class="ajaxupdate" value="1" checked />
<input type="checkbox" class="ajaxupdate" value="2" />
<input type="checkbox" class="ajaxupdate" value="3" checked />
Try this code.
Replace $(this.checked).val(); to $(this).val();
var ref_idee = "";
$('.ajaxupdate:checked').each(function () {
var sThisVal = $(this).val();
ref_idee += (ref_idee=="" ? sThisVal : "," + sThisVal);
});
console.log (ref_idee);
I have a function written in jquery that copies the value of the checkbox to the textarea #msg
$(document).ready(function(){
$("input:checkbox").click(function() {
var output = "";
$("input:checked").each(function() {
output += $(this).val() + "";
});
$("#msg").val(output.trim());
});
});
Clicking any checkbox on side copies of its value to the #msg field
How to reduce this effect that only checkboxes in the <ul> or a selected div operate in such a manner?
I want this:
<ul>
<input name="foo2" type="checkbox" value="Hello" id="tel_1">
<label for="tel_1">Hello</label>
</ul>
To be copied to the #msg textarea and this :
<input name="foo" value="123123123" id="tel_11" type="checkbox">
<label for="tel_11">Alan</label>
Not to be copied. I played with this :
$("input:checkbox").click(function()
And changed input:checkbox to ul:input:checkbox but I do not want to work.
You could use the id :
$(document).ready(function(){
$("#tel_1").click(function() {
var output = "";
output += $(this).val() + "";
$("#msg").val(output.trim());
});
});
Or if you want to exclude just #tel_11 you could use :not() selector like :
$(document).ready(function(){
$("input:checkbox:not('#tel_11')").click(function() {
var output = "";
$("input:checked:not('#tel_11')").each(function() {
output += $(this).val() + "";
});
$("#msg").val(output.trim());
});
});
Update :
If you have several id's as you sain in the comment (answers example) you could use start with selector like $("[id^='answer_'") ans that will include all of your 18 answers, e.g :
$(document).ready(function(){
$("[id^='answer_'").click(function() {
var output = "";
output += $(this).val() + "";
$("#msg").val(output.trim());
});
});
Hope this helps.
Use a selector that just matches checkboxes that are children of <ul>.
$("ul > :checkbox").click(function() {
...
});
I'm using a jquery to add a new checkbox when I click an option from an existing checkbox.
Next I add an id in this checkbox and I get it's value through a new jquery. I want to create a new jquery to get the ids of ALL the extended checked ids.
My current html code is:
<div id="div_id_diag-diagnosis_option" class="form-group">
<label for="id_diag-diagnosis_option_0" class="control-label col-md-3 requiredField">Option<span class="asteriskField">*</span> </label>
<div class="controls col-md-8">
<label class="checkbox">
<input type="checkbox" name="diag-diagnosis_option" id="id_diag-diagnosis_option_1" value="b">b</label>
<label class="checkbox">
<input type="checkbox" name="diag-diagnosis_option" id="id_diag-diagnosis_option_2" value="a">a</label>
<label class="checkbox">
<input type="checkbox" name="diag-diagnosis_option" id="id_diag-diagnosis_option_3" value="c">c</label>
</div>
</div>
The jquery to add the checkbox is:
$("input[name='diag-diagnosis_option']").change(function() {
var $this = $(this);
if ($this.prop('checked')) {
var option = $(this).val();
alert(option);
$(this).parent().append("<a href='#'>here</a>");
} else if ($this.siblings('a').length) {
$this.siblings('a').remove();
}
});
The jquery to get the value of the new checkbox is the one below:
$(document).on('change', '#extended', function () {
var option = $(this).val();
//alert(option);
});
The jquery to get the ids of all the extended checked checkboxes is the one below but it's not working.
var selected = [];
$(document).on('each', '#extended input:checked', function () {
selected.push($(this).attr('id'));
alert(selected);
});
You can test it here.
Can you help me please?
You have incorrect syntax for iterating over checkboxes. You are trying to use each as an event. However each is jquery method and not even associated to element. and correct syntax to use it is:
var selected = [];
$('#extended input:checked').each(function () {
selected.push($(this).attr('name'));
alert(selected);
});
However you can achieve this in cleaner way using .map() along with .get() to achieve this:
var selected = $('#extended input:checked').map(function(){
return $(this).attr('name');
}).get();
EDIT
As you append checkboxes dynamically , you should add values at there change event .. also you have dynamic checkboxes with same id .. you should use class instead of id that is not permitted
Do it as-
var selected = [];
$("input[name='diag-diagnosis_option']").change(function () {
var $this = $(this)
if ($(this).prop('checked')) {
var option = $(this).val();
$(this).parent().append('<label><input type="checkbox" class="extended"
name="extended" value=' + escape($(this).attr('value')) + '>
Extended</label>');
} else if ($this.siblings('label').length) {
$this.siblings('label').remove();
}
});
$(document).on('change', '.extended', function () {
var option = $(this).val(); // or attr('name');
selected.push(option);
alert(selected);
});
LIVE https://jsfiddle.net/mailmerohit5/wt9btcb0/
I have a little problem with getiing the value of diffrent checkboxes when it is checked. Here is my code
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.js"></script>
<script>
$(document).ready(function(){
$('input[type="checkbox"]').bind('click',function()
{
var waterdm = $('#waterdm').val();
$("#price").val(waterdm);
});
});
</script>
<p><input type="checkbox" id="waterdm" name="waterdm" value="10" />Water Damage</p>
<p><input type="checkbox" id="screendm" name="screendm" value="20" />Screen Damage</p>
<p><input type="checkbox" id="Chargerdm" name="Chargerdm" value="30" />Charger Damage</p>
<p><input type="checkbox" id="hdphdm" name="hdphdm" value="10" />Headphone Damage</p>
<p>
Calculated Price: <input type="text" name="price" id="price" />
</p>
What I want is whenever user check in checkboxes I need to get those value and show the sum of each checkbox value which is checked in to another input box. It Means I need to sum those value of each checkbox
is checked.And when user unchecked any of the checkboxes then that value should subtracted from the that total. I don't have enough experience in jquery. Please help me.
You would need to iterate over the cheboxes. And change event makes more sense when you are talking in terms of checkboxes..
Use on to attach events instead of bind
$(document).ready(function () {
// cache the inputs and bind the events
var $inputs = $('input[type="checkbox"]')
$inputs.on('change', function () {
var sum = 0;
$inputs.each(function() {
// iterate and add it to sum only if checked
if(this.checked)
sum += parseInt(this.value);
});
$("#price").val(sum);
});
});
Check Fiddle
$(document).ready(function () {
var waterdm = 0;
$('input[type="checkbox"]').bind('click', function (e) {
if (this.checked) {
waterdm += eval(this.value);
} else {
waterdm -= eval(this.value);
}
$("#price").val(waterdm);
});
});
Demo here
Try this
$(document).ready(function(){
var waterdm=0;
$('input[type="checkbox"]').on('click',function()
{
waterdm = waterdm+parseInt($(this).val());
$("#price").val(waterdm);
});
});
Demo
You can use following code
$(document).ready(function(){
$('input[type="checkbox"]').click(function()
{
var val = 0;
$('input[type="checkbox"]:checked').each(function(){
val+=parseInt($(this).val());
});
$("#price").val(val);
});
});
Demo
If you want to sum all checked checkboxes try something like this:
$('input[type="checkbox"]').bind('click',function()
{
var sum = 0;
$('input[type="checkbox"]:checked').each(function(){
var val = parseInt($(this).val());
sum += val;
});
$("#price").val(sum);
});
So I've got code that looks like this:
<input class="messageCheckbox" type="checkbox" value="3" name="mailId[]">
<input class="messageCheckbox" type="checkbox" value="1" name="mailId[]">
I just need Javascript to get the value of whatever checkbox is currently checked.
EDIT: To add, there will only be ONE checked box.
None of the above worked for me but simply use this:
document.querySelector('.messageCheckbox').checked;
For modern browsers:
var checkedValue = document.querySelector('.messageCheckbox:checked').value;
By using jQuery:
var checkedValue = $('.messageCheckbox:checked').val();
Pure javascript without jQuery:
var checkedValue = null;
var inputElements = document.getElementsByClassName('messageCheckbox');
for(var i=0; inputElements[i]; ++i){
if(inputElements[i].checked){
checkedValue = inputElements[i].value;
break;
}
}
I am using this in my code.Try this
var x=$("#checkbox").is(":checked");
If the checkbox is checked x will be true otherwise it will be false.
in plain javascript:
function test() {
var cboxes = document.getElementsByName('mailId[]');
var len = cboxes.length;
for (var i=0; i<len; i++) {
alert(i + (cboxes[i].checked?' checked ':' unchecked ') + cboxes[i].value);
}
}
function selectOnlyOne(current_clicked) {
var cboxes = document.getElementsByName('mailId[]');
var len = cboxes.length;
for (var i=0; i<len; i++) {
cboxes[i].checked = (cboxes[i] == current);
}
}
This does not directly answer the question, but may help future visitors.
If you want to have a variable always be the current state of the checkbox (rather than having to keep checking its state), you can modify the onchange event to set that variable.
This can be done in the HTML:
<input class='messageCheckbox' type='checkbox' onchange='some_var=this.checked;'>
or with JavaScript:
cb = document.getElementsByClassName('messageCheckbox')[0]
cb.addEventListener('change', function(){some_var = this.checked})
$(document).ready(function() {
var ckbox = $("input[name='ips']");
var chkId = '';
$('input').on('click', function() {
if (ckbox.is(':checked')) {
$("input[name='ips']:checked").each ( function() {
chkId = $(this).val() + ",";
chkId = chkId.slice(0, -1);
});
alert ( $(this).val() ); // return all values of checkboxes checked
alert(chkId); // return value of checkbox checked
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<input type="checkbox" name="ips" value="12520">
<input type="checkbox" name="ips" value="12521">
<input type="checkbox" name="ips" value="12522">
Use this:
alert($(".messageCheckbox").is(":checked").val())
This assumes the checkboxes to check have the class "messageCheckbox", otherwise you would have to do a check if the input is the checkbox type, etc.
<input class="messageCheckbox" type="checkbox" onchange="getValue(this.value)" value="3" name="mailId[]">
<input class="messageCheckbox" type="checkbox" onchange="getValue(this.value)" value="1" name="mailId[]">
function getValue(value){
alert(value);
}
None of the above worked for me without throwing errors in the console when the box wasn't checked so I did something along these lines instead (onclick and the checkbox function are only being used for demo purposes, in my use case it's part of a much bigger form submission function):
function checkbox() {
var checked = false;
if (document.querySelector('#opt1:checked')) {
checked = true;
}
document.getElementById('msg').innerText = checked;
}
<input type="checkbox" onclick="checkbox()" id="opt1"> <span id="msg">Click The Box</span>
If you're using Semantic UI React, data is passed as the second parameter to the onChange event.
You can therefore access the checked property as follows:
<Checkbox label="Conference" onChange={(e, d) => console.log(d.checked)} />
Surprised to see no working vanilla JavaScript solutions here (the top voted answer does not work when you follow best practices and use different IDs for each HTML element). However, this did the job for me:
Array.prototype.slice.call(document.querySelectorAll("[name='mailId']:checked"),0).map(function(v,i,a) {
return v.value;
});
If you want to get the values of all checkboxes using jQuery, this might help you. This will parse the list and depending on the desired result, you can execute other code. BTW, for this purpose, one does not need to name the input with brackets []. I left them off.
$(document).on("change", ".messageCheckbox", function(evnt){
var data = $(".messageCheckbox");
data.each(function(){
console.log(this.defaultValue, this.checked);
// Do something...
});
}); /* END LISTENER messageCheckbox */
pure javascript and modern browsers
// for boolean
document.querySelector(`#isDebugMode`).checked
// checked means specific values
document.querySelector(`#size:checked`)?.value ?? defaultSize
Example
<form>
<input type="checkbox" id="isDebugMode"><br>
<input type="checkbox" value="3" id="size"><br>
<input type="submit">
</form>
<script>
document.querySelector(`form`).onsubmit = () => {
const isDebugMode = document.querySelector(`#isDebugMode`).checked
const defaultSize = "10"
const size = document.querySelector(`#size:checked`)?.value ?? defaultSize
// 👇 for defaultSize is undefined or null
// const size = document.querySelector(`#size:checked`)?.value
console.log({isDebugMode, size})
return false
}
</script>
Optional_chaining (?.)
You could use following ways via jQuery or JavaScript to check whether checkbox is clicked.
$('.messageCheckbox').is(":checked"); // jQuery
document.getElementById(".messageCheckbox").checked //JavaScript
To obtain the value checked in jQuery:
$(".messageCheckbox").is(":checked").val();
In my project, I usually use this snippets:
var type[];
$("input[name='messageCheckbox']:checked").each(function (i) {
type[i] = $(this).val();
});
And it works well.