in this tutorial, you will learn how to use JavaScript to check if a checkbox is checked and how to get values of selected checkboxes.

The Input Checkbox object represents an HTML <input> element with type="checkbox". You can access an <input> element with type="checkbox" by using getElementById (): Tip: You can also access …

Note that setting the checked content attribute (as opposed to the IDL attribute set with Javascript) to a non-empty string, the checkbox is checked. So if you set the 'checked' content attribute to "false", the …

Feb 3, 2026 · When you check or uncheck an ingredient's checkbox, a JavaScript function checks the total number of checked ingredients: If none are checked, the recipe name's checkbox is set to …

Jul 12, 2025 · To check and uncheck the checkbox using JavaScript we can use the onclick event to toggle the checkbox value. We can also check or uncheck all the checkboxes on loading the …

Nov 21, 2025 · This blog will guide you through checking checkboxes programmatically and triggering their `change` events using pure JavaScript, with practical examples and best practices.

Try out the JavaScript by clicking the button below: You can modify the above program by adding more than one checkboxes to the page. The code is able to show the user how many checkboxes are …

In this tutorial, you will read and learn about several JavaScript and jQuery methods for checking and unchecking a checkbox. Choose the best one for you.

Dec 12, 2024 · To effectively handle checkboxes and radio buttons with JavaScript, we need to manipulate the Document Object Model (DOM). In this article, we will explore how to manage …

Jan 12, 2025 · A comprehensive guide to the HTML DOM Checkbox Object, covering how to access, manipulate, and interact with checkbox elements using JavaScript.