Select / Deselect all checkboxes using jQuery

In this tutorial, I explain how to select and deselect multiple check box using jquery.
First, you have to include a jQuery Library

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>

HTML Code for Checkboxes

<ul class="main">
    <li><input type="checkbox" id="select_all" /> Select all</li>
    <ul>
        <li><input type="checkbox" class="checkbox" value="1"/>Item 1</li>
        <li><input type="checkbox" class="checkbox" value="2"/>Item 2</li>
        <li><input type="checkbox" class="checkbox" value="3"/>Item 3</li>
        <li><input type="checkbox" class="checkbox" value="4"/>Item 4</li>
        <li><input type="checkbox" class="checkbox" value="5"/>Item 5</li>
    </ul>
</ul>

#select_all is the id for checkbox and items checkboxes have a checkbox class.
Jquery Script

<script >
$(document).ready(function(){
    $('#select_all').on('click',function(){
        if(this.checked){
            $('.checkbox').each(function(){
                this.checked = true;
            });
        }else{
             $('.checkbox').each(function(){
                this.checked = false;
            });
        }
    });
    $('.checkbox').on('click',function(){
        if($('.checkbox:checked').length == $('.checkbox').length){
            $('#select_all').prop('checked',true);
        }else{
            $('#select_all').prop('checked',false);
        }
    });
});
</script>

Demo

• Select all
  • Item 1
  • Item 2
  • Item 3
  • Item 4
  • Item 5

Here is the full code that we have written during this tutorial:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script><script >
$(document).ready(function(){
    $('#select_all').on('click',function(){
        if(this.checked){
            $('.checkbox').each(function(){
                this.checked = true;
            });
        }else{
             $('.checkbox').each(function(){
                this.checked = false;
            });
        }
    });
    $('.checkbox').on('click',function(){
        if($('.checkbox:checked').length == $('.checkbox').length){
            $('#select_all').prop('checked',true);
        }else{
            $('#select_all').prop('checked',false);
        }
    });
});
</script>
<ul class="main">
    <li><input type="checkbox" id="select_all" /> Select all</li>
    <ul>
        <li><input type="checkbox" class="checkbox" value="1"/>Item 1</li>
        <li><input type="checkbox" class="checkbox" value="2"/>Item 2</li>
        <li><input type="checkbox" class="checkbox" value="3"/>Item 3</li>
        <li><input type="checkbox" class="checkbox" value="4"/>Item 4</li>
        <li><input type="checkbox" class="checkbox" value="5"/>Item 5</li>
    </ul>
</ul>