How To Get All Checkboxes Checked in JavaScript?

How to get all checked checkbox values using JavaScript

Retrieving the values from a collection of checkboxes is not as straightforward as you would expect. In this article, I will show you one way you can accomplish this.

Let’s say you have the HTML below and you want to retrieve the values of the checkboxes a user has selected.

div class="filter"> Filter by quarter: ul> li> input type="checkbox" value="1" name="q1" id="q1" /> label for="q1">Q1label> li> li> input type="checkbox" value="2" name="q2" id="q2" /> label for="q2">Q2label> li> li> input type="checkbox" value="3" name="q3" id="q3" /> label for="q3">Q3label> li> li> input type="checkbox" value="4" name="q4" id="q4" /> label for="q4">Q4label> li> ul> div>

We can use querySelectorAll and look for input elements with the type checkbox to get all checkboxes but we only want the checkboxes a user has selected. We can get the selected checkboxes by using the :checked pseudo class.

document.querySelectorAll('input[type="checkbox"]:checked')

Since querySelectorAll returns an HTMLCollection will need to convert it to an array and map over that array to get the value of the checked checkboxes.

We will use event delegation to listen for checkbox changes. Event delegation enables us to add the event listener to a parent element (the ul ) instead of each child element ( input[type=»checkbox»] ). For more information on event delegation, I highly recommend David Walsh’s blog post “How JavaScript Event Delegation Works”

const ul = document.querySelector('ul') let selected = []; ul.addEventListener('change', event =>  if (event.target.type === 'checkbox')   const checked = document.querySelectorAll('input[type="checkbox"]:checked') selected = Array.from(checked).map(x => x.value) > >)

Any time a checkbox is clicked, the selected array will be updated. If we select the first and last checkbox selected will contain [«1», «4»] .

Joshua Colvin is a UI Software Engineer specializing in building component libraries. He lives with his wife and two kids in Michigan.

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Getting all checkboxes javascript

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Laravel Livewire Crud with Bootstrap Modal Example

Hello Friends, In this blog, I would like to share with you how perform crud opeartion with bootstrap modal livewire in laravel application.I will.

Javascript Get All Checked Checkboxes Values Example

Now let’s see example of how to get all checkboxes checked example. We will use how to get all checkboxes checked in javascript. Here you will learn how to use javascript get all checkboxes checked. This is a short guide on get all checkboxes checked. Let’s get started with how to get all checkboxes checked in javascript.

Here i will give you many example how you can get all checkboxes checked javascript.

       
 
 
 
 
How To Get All Checkboxes Checked
 
 
Tick the all checkboxes and check all values show in console.
 
    
 
 
 
 
 
    

(1)80.21 (2)170.41 (3)225.40999999999997 (4)324.40999999999997

       
 
 
 
 
Select your favourite company :
 
 
Choose your Subject :
 
 Laravel 
 
 J2EE 
 
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Submit 
 
 
 
 
 
    

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Getting all checkboxes javascript

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