How To Check And Uncheck A Checkbox With jQuery

27th July 2009 - 2 minutes read time

To check and uncheck a checkbox using jQuery you first need to access the checkbox element using the $() function. Once you have done that you can retrieve or change the value of the checkbox quite easily.

To uncheck a checkbox use the following snippet, which makes nice use of the jQuery attribute filters:

$('input[name=mycheckbox]').attr('checked', false);

To check a checkbox use the following:

$('input[name=mycheckbox]').attr('checked', true);

To test if a checkbox is set or not use one of the following, both return true if checked and false is unchecked.

var checked = $('input[name=mycheckbox]').is(':checked');
var checked = $('input[name=mycheckbox]').attr('checked');
checkbox
JQuery

Add new comment

The content of this field is kept private and will not be shown publicly.

Related Content

Creating A Reading Progress Bar In JavaScript

9th January 2022

Adding a progress bar to the top of the page is a simple way of showing the user how far down the page they have read. There is a scroll bar on the right hand side of the page on my current device, but that isn't always present on all devices.

Read more

Animating Number Updates With jQuery

5th December 2021

I was working on a user dashboard recently and decided to add some more signposting to values being updated.  Users were able to select different parameters in order to produce different values, but I thought that the values being updated weren't clear enough.

Read more

Inspecting And Reusing jQuery Events

19th July 2020

Adding events to HTML elements with jQuery is pretty simple, but I found that extending those events wasn't an easy task. I was faced with an issue where I had some third party code that performed an action on an element, and I needed to add an event and call the same handler from that event.

Read more

Checking If An Element Exists In jQuery

3rd February 2013

To verify that an element exists in the DOM you just need to use the .length property of a jQuery lookup. If the element is there then the number of elements found will be greater than 0.

Read more

Easy QR Code Generation With Google Charts API

26th April 2012

When I found about the ability to create QR codes using the Google Charts API I decided to sit down and create a little tool that would generate QR codes for me. I've had this tool for a while and I recently noticed that the QR code mechanism has become deprecated. The API will still work for a couple of years so I thought it was worth posting this.

Read more

Prevent Enter Key Submitting Forms With JQuery

15th July 2011

A common practice that some users have is to press the enter key when they are filling in forms on the web. This might be when they are just moving to the next field, but the trouble is that this will submit the form.

Read more