Check a specific number of checkboxes and disable the remaining checkboxes using JavaScript:

To check a specific number of checkboxes and disable the remaining checkboxes using JavaScript, you can follow these steps:

HTML structure: Create a set of checkboxes with unique IDs or classes. For example:

JavaScript code: Add the following JavaScript code to your page or external JavaScript file:

// Define the maximum number of checkboxes that can be checked

var checkboxes = document.querySelectorAll('input[type="checkbox"]');

// Add an event listener to each checkbox

  checkbox.addEventListener('change', function() {

    // Count the number of checked checkboxes

    var checkedCount = document.querySelectorAll('input[type="checkbox"]:checked').length;

    // Disable or enable checkboxes based on the checked count

    checkboxes.forEach(function(checkbox) {

      checkbox.disabled = (checkedCount >= maxCheckboxes && !checkbox.checked);

In this code, we define the maxCheckboxes variable to specify the maximum number of checkboxes that can be checked. In this example, it is set to 2.

We use document.querySelectorAll to select all the checkboxes on the page. Then, we add an event listener to each checkbox using forEach.

Inside the event listener, we count the number of checked checkboxes using document.querySelectorAll('input[type="checkbox"]:checked').length. If the checked count is equal to or greater than the maxCheckboxes, we disable the remaining checkboxes that are not checked. Otherwise, we enable all checkboxes.

When a checkbox is changed, the event listener triggers and updates the state of the checkboxes accordingly.

Feel free to adjust the maxCheckboxes value or customize the code as per your requirements.

Here's is the another way to achive this well:

var checkboxes = document.querySelectorAll('.checkbox');

      if (checkedCount >= maxCheckboxes) {

  checkboxes.forEach(function(checkbox) {

In this approach, we initialize the checkedCount variable to 0. Whenever a checkbox is changed, we increment or decrement the count based on whether the checkbox was checked or unchecked.

If the count reaches or exceeds the maxCheckboxes value, we call the disableRemainingCheckboxes() function to disable the unchecked checkboxes. If a checkbox is unchecked, we call the enableAllCheckboxes() function to enable all checkboxes.

This method provides more flexibility if you need to dynamically change the maxCheckboxes value or if you have checkboxes with different classes or IDs. 

Describing check and disable chekboxes in JavaScript:

Checking a specific number of checkboxes and disabling the remaining ones using JavaScript, falls under the broader category of DOM manipulation and event handling in JavaScript.

DOM (Document Object Model) manipulation refers to the process of modifying the structure, content, or style of a web page using JavaScript. It allows you to dynamically interact with and modify the elements of an HTML document.

In the specific scenario you described, the objective is to check a certain number of checkboxes and disable the rest. This functionality is commonly used in situations where you want to limit user selections or enforce a specific rule, such as selecting a maximum number of options from a list.

To achieve this, JavaScript is used to listen for changes in the checkboxes' state (checked or unchecked) and perform the necessary actions based on those changes. Event listeners are attached to each checkbox, allowing you to trigger code when a checkbox is clicked or its state is changed.

JavaScript code to check a specific number of checkboxes and disable the rest for controlled user selections.

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