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.
Related
I am having dynamically created checkbox...
I want that checked value from the checkbox should be stored in one array...
I am Facing the following Problems...
*
var checkedvalue=document.querySelectorAll('input[type=checkbox]:checked');
If I alert the value of checkedvalue It given undefined
If I have console.log the final variable console.log(array); It given the
["on"] in the console.log if the value is checked.
I didn't get the actual value.My code is given below. I don't know what is the mistake I did. Anyone could you please help me.
Thanks in Advance
<input type="Submit" Value="add" onclick="searchinput()">
--------------
function searchinput()
{
var li=document.createElement("li");
//creating checkbox
var label=document.createElement('label');
label.className="lab_style";
li.appendChild(label);
var check=document.createElement('input');
check.type="checkbox";
check.name="check_bo";
li.appendChild(check);
check.addEventListener('click', function() {
var array=[];
var checkedvalue=document.querySelectorAll('input[type=checkbox]:checked');
alert(checkedvalue.value);
for (var i = 0; i < checkedvalue.length; i++) {
array.push(checkedvalue[i].value);
console.log(array);
}
}, false);
}
one of the problems you are facing is that
document.querySelectorAll('input[type=checkbox]:checked');
returns a NodeList and value is not a property on an NodeList object. That is why you are seeing "undefined" in your alert.
Changing as little of your code as possible, I think this should work:
function searchinput()
{
var li=document.createElement("li");
//creating checkbox
var label=document.createElement('label');
label.className="lab_style";
li.appendChild(label);
var check=document.createElement('input');
check.type="checkbox";
check.name="check_bo";
li.appendChild(check);
check.addEventListener('click', function() {
var array=[];
var checkedvalue = document.querySelectorAll('input[type=checkbox]:checked');
for (var i = 0; i < checkedvalue.length; i++) {
if(checkedvalue[i].checked) {
array.push(checkedvalue[i].value);
}
}
}, false);
}
If you have a form with a bunch of checkboxes and once the form is submitted you want to have the values of all the checkboxes which are checked stored in an array then you can do it like this.
const checkboxes = document.querySelectorAll("input[type=checkbox]");
const form = document.querySelector("form");
const arr = [];
form.addEventListener("submit", (e) => {
e.preventDefault()
checkboxes.forEach(chbox => {
if (chbox.checked) {
arr.push(chbox.value)
}
})
console.log(arr)
})
<form>
<label>Apple:
<input type="checkbox" value="apple" name="test"></label>
<label>Mango:
<input type="checkbox" value="mango" name="test"></label>
<label>Banana:
<input type="checkbox" value="banana" name="test"></label>
<label>Grape:
<input type="checkbox" value="grape" name="test"></label>
<button type="submit">Submit</button>
</form>
I am trying to get all checked chckboxes value of a full page.
the full has all sort of html tags defined.
There is another piece to it which is div which has a parent class of "syllabus". except that class div and any checkboxes inside it will be ignored when the other checkboxes of complete page is checked
I am trying some like this:
$('input[type=checkbox]').each(function () {
var sThisVal = (this.checked ? $(this).val() : "");
});
Maybe something like this:
var checkedValues = [];
$('input[type=checkbox]:checked').each(function(){
checkedValues.push($(this).val());
});
console.log(checkedValues);
Or (using .map() and .get())
var checkedValues = $("input[type=checkbox]:checked").map(function() {
return $(this).val();
}).get();
console.log(checkedValues);
More info
Here you go with a solution
var sThisVal = [];
$('input[type=checkbox]').each(function () {
sThisVal.push((this.checked ? $(this).val() : ""));
});
console.log(sThisVal);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" checked value="1">Checkbox 1
<input type="checkbox" value="2">Checkbox 2
<input type="checkbox" checked value="3">Checkbox 3
<input type="checkbox"value="4">Checkbox 4
Hope this will help you.
I have a form located on my html page with a bunch of checkboxes as options. One of the options is "check-all" and I want all the other check boxes to be checked, if unchecked, as soon as the "check-all" box is checked. My code looks something like this:
<form method = "post" class = "notification-options">
<input type = "checkbox" name = "notification-option" id = "all-post" onClick = "javascript:checkALL(this
);"> All Posts <br/>
<input type = "checkbox" name = "notification-option" id = "others-post"> Other's Posts <br/>
<input type = "checkbox" name = "notification-option" id = "client-post"> Cilent's Post <br/>
<input type = "checkbox" name = "notification-option" id = "assign-post"> Task Assigned </form>
java script:
<script type = "text/javascript">
var $check-all = document.getElementbyId("all-post");
function checkALL($check-all){
if ($check-all.checked == true){
document.getElementByName("notification-option").checked = true;
}
}
</script>
nothing happens when I run my code
Here are some guidelines.
type attribute is not needed and can be omitted.
JS variable names can't contain hyphens, a typo in
getElementById()
You're using a global variable name as an argument, in the same time
you're passing this from online handler. The passed argument shadows the
global within the function.
if (checkAll.checked) does the job
Typo in getElementsByName(), gEBN() returns an HTMLCollection,
which is an array-like object. You've to iterate through the
collection, and set checked to every element separately.
Fixed code:
<script>
var checkAll = document.getElementById("all-post");
function checkALL(){
var n, checkboxes;
if (checkAll.checked){
checkboxes = document.getElementsByName("notification-option");
for (n = 0; n < checkboxes.length; n++) {
checkboxes[n].checked = true;
}
}
}
</script>
You can also omit the javascript: pseudo-protocol and the argument from online handler.
You can do it like this using jQuery:
$("#all-post").change(function(){
$('input:checkbox').not(this).prop('checked', this.checked);
});
Here is a JSfiddle
if all post check box is checked it will set check=true of others-post and client-post check boxes
$("input[id$=all-post]").click(function (e) {
if ($("input[id$=all-post]").is(':checked')) {
$("input[id$=others-post]").prop('checked', true);
$("input[id$=client-post]").prop('checked', true);
}
});
Check to see if any of the checkboxes are not checked first.
If so, then loop through them and check any that aren't.
Else, loop through them and uncheck any that are checked
I have an example at http://jsbin.com/witotibe/1/edit?html,output
http://jsfiddle.net/AX3Uj/
<form method="post" id="notification-options">
<input type="checkbox" name="notification-option" id="all-post"> All Posts<br>
<input type="checkbox" name="notification-option" id="others-post"> Other's Posts<br>
<input type="checkbox" name="notification-option" id="client-post"> Cilent's Post<br>
<input type="checkbox" name="notification-option" id="assign-post"> Task Assigned
</form>
function checkAll(ev) {
checkboxes = document.getElementById('notification-options').querySelectorAll("input[type='checkbox']");
if (ev.target.checked === true) {
for (var i = 0; i < checkboxes.length; ++i) {
checkboxes[i].checked = true;
}
} else {
for (var i = 0; i < checkboxes.length; ++i) {
checkboxes[i].checked = false;
}
}
}
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);
});
I have
<form name="send">
<input type="radio" name="schoose" value="24">
<input type="radio" name="schoose" value="25">
<input type="radio" name="schoose" value="26">
I am trying to find the value of the selected radio button I thought it was
document.send.schoose.value
apparently I was wrong, can someone clue me in
Another option...
$('input[name=schoose]:checked').val()
Try this
document.getElementsByName('schoose')[1].value;
try the $("input[name='schoose']:checked").val();
In plain JavaScript you can get the values of the second radio button with:
document.getElementsByName('schoose')[1].value;
In jQuery:
$('input[name="schoose"]:eq(1)').val();
jsFiddle example
document.getElementsByName('schoose')[1]
you can do this by
with javascript
document.getElementsByName('schoose')[1].value;
and with jquery like below
$("[name=schoose]").each(function (i) {
$(this).click(function () {
var selection = $(this).val();
if (selection == 'default') {
// Do something
}
else {
// Do something else
}
});
});
or
$("input:radio[name=schoose]").click(function() {
var value = $(this).val();
//or
var val = $('input:radio[name=schoose]:checked').val();
});
With just javascript:
var radio=document.getElementsByName('schoose');
var radioValue="";
var length=radio.length;
for(var i=0;i<length;i++)
{
if(radio[i].checked==true) radioValue=radio[i].value;
}
alert(radioValue);