When present, it specifies that an <input> element should be pre-selected (checked) when the page loads. type="radio">. The checked attribute can also be set after the page load, with a JavaScript. …

Apr 22, 2026 · <input> elements of type checkbox are rendered by default as boxes that are checked (ticked) when activated, like you might see in an official government paper form.

Oct 21, 2011 · Checkboxes (and radio buttons) are on/off switches that may be toggled by the user. A switch is "on" when the control element's checked attribute is set. When a form is submitted, only …

Aug 30, 2024 · Checkboxes can be checked or unchecked, and they are created using the <input> tag with the type attributes set to the checkbox. There are various ways to create the checkboxes in …

Feb 9, 2025 · A comprehensive guide to the HTML Checkbox checked property, covering its usage, syntax, and practical examples for web developers.

What does the HTML 'checked' attribute do? It indicates whether a checkbox or radio button is selected. It sets the default value of an input element. It provides a hint for the user on the expected value of …

When present, it specifies that an <input> element should be pre-selected (checked) when the page loads. The checked attribute can be used with <input type="checkbox"> and <input type="radio">.

Learn how to use the HTML checkbox element with syntax, examples, and tips for styling, behavior, accessibility, and form submissions.

We can use the checked attribute with a JavaScript conditional statement to verify whether a checkbox or radio button is checked. It returns true if the checkbox or radio button is checked otherwise false.

Apr 29, 2026 · To trigger actions when a checkbox is checked/unchecked, we use events. Two common events: Fires when the checkbox’s state changes (checked → unchecked or vice versa). …