jquery checkall button and uncheckall button to select other checkbox

jquery checkall button and uncheckall button to select other checkbox

Date : October 18 2020, 01:08 AM
wish help you to fix your issue please anyone tell me how to set check all and uncheck all when i check single checkbox one by one after all check , the above checkall and uncheck all is checked that is why he is checked. here is the Code im currently using: , Simple Toggle Boxes:
code :
function toggle(source) {
      checkboxes = document.getElementsByName('foo');
      for(var i=0, n=checkboxes.length;i<n;i++) {
        checkboxes[i].checked = source.checked;
<script language="JavaScript">
    function toggle(source) {
      checkboxes = document.getElementsByName('foo');
      for(var checkbox in checkboxes)
        checkbox.checked = source.checked;

    <input type="checkbox" onClick="toggle(this)" /> Toggle All<br/>

    <input type="checkbox" name="foo" value="bar1"> Bar 1<br/>
    <input type="checkbox" name="foo" value="bar2"> Bar 2<br/>
    <input type="checkbox" name="foo" value="bar3"> Bar 3<br/>
    <input type="checkbox" name="foo" value="bar4"> Bar 4<br/>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>

<label>checked all</label>
<input type="checkbox" name="check123" class="checkall">
<label>unchecked all</label>
<input type="checkbox" name="check123" class="uncheckall">
  <input type="checkbox" name="check123" class="single">
  <input type="checkbox" name="check123" class="single">
  <input type="checkbox" name="check123" class="single">
  <input type="checkbox" name="check123" class="single">
  <input type="checkbox" name="check123" class="single">
  <input type="checkbox" name="check123" class="single">
<script async src="//jsfiddle.net/kq958k3s/147/embed/result/"></script>
<script async src="//jsfiddle.net/Vj6wY/4925/embed/result/"></script>

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Simple Jquery CheckAll /UncheckAll checkboxes

Simple Jquery CheckAll /UncheckAll checkboxes

By : sam
Date : March 29 2020, 07:55 AM
To fix this issue you can use the jquery function .is() to check the status of the checkbox and then use .each() function to cicle and set the status of all the checkbox with the same class to the one of the master:
code :
$('#masterChecks input[type="checkbox"]').click(function(){
 var checkclass= $(this).attr('class');
   $('div.' + checkclass + ' input[type="checkbox"]').each(function(){
       $(this).attr('checked', true);
    $('div.' + checkclass + ' input[type="checkbox"]').each(function(){
        $(this).attr('checked', false);
CheckAll/UncheckAll checkbox with jQuery

CheckAll/UncheckAll checkbox with jQuery

By : Tatsat Savsani
Date : March 29 2020, 07:55 AM
I hope this helps you . I think you just need this: You do not need to pass all the arguments and have the inline onchange event attached to it. You can simplify your code.
code :
$(function () {
    $('input[type="checkbox"]').change(function (e) {
       if(this.className == 'all')
           $('.check').prop('checked', this.checked); //Toggle all checkboxes based on `.all` check box check status
            $('.all').prop('checked', $('.check:checked').length == $('.check').length); // toggle all check box based on whether all others are checked or not.
why does my checkall function work but the uncheckall function doesnt

why does my checkall function work but the uncheckall function doesnt

By : tibacademy
Date : March 29 2020, 07:55 AM
it fixes the issue You need to use .prop to set a checkbox to checked/unchecked instead of .attr:
code :
CheckAll/UncheckAll issue with Subscribe ? Knockout

CheckAll/UncheckAll issue with Subscribe ? Knockout

By : yoro
Date : March 29 2020, 07:55 AM
will help you I solved a similar problem in my own application a couple of years ago using manual subscriptions. Although the computed observable method is concise and easy to understand, it suffers from poor performance when there's a large number of items. Hopefully the code below speaks for itself:
code :
function unsetCount(array, propName) {
    // When an item is added to the array, set up a manual subscription
    function addItem(item) {
        var previousValue = !!item[propName]();
        item[propName]._unsetSubscription = item[propName].subscribe(function (latestValue) {
            latestValue = !!latestValue;
            if (latestValue !== previousValue) {
                previousValue = latestValue; 
                unsetCount(unsetCount() + (latestValue ? -1 : 1));
        return previousValue;
    // When an item is removed from the array, dispose the subscription
    function removeItem(item) {
        return !!item[propName]();

    // Initialize
    var tempUnsetCount = 0;
    ko.utils.arrayForEach(array(), function (item) {
        if (!addItem(item)) {
    var unsetCount = ko.observable(tempUnsetCount);

    // Subscribe to array changes
    array.subscribe(function (changes) {
        var tempUnsetCount = unsetCount();
        ko.utils.arrayForEach(changes, function (change) {
            if (change.moved === undefined) {
                if (change.status === 'added') {
                    if (!addItem(change.value))
                } else {
                    if (!removeItem(change.value))
    }, null, 'arrayChange');

    return unsetCount;
self.unselectedPeopleCount = unsetCount(self.People, 'Selected');

self.SelectAll = ko.pureComputed({
    read: function() {
        return self.People().length &&  self.unselectedPeopleCount() === 0;
    write: function(value) {
        ko.utils.arrayForEach(self.People(), function (person) {
jQuery UI checkbox button select all problem

jQuery UI checkbox button select all problem

By : user3932356
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I am using this to check all checkboxes.
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