Regulate Checkbox Log For Free

We have used onclick event of checkbox to trigger the function which checks the number of checkbox clicked. Here once the fourth one is clicked by the user the function shows a message and after that it removes or uncheck the last checkbox ( the fourth one ) the user has clicked.

The <input type="checkbox"> defines a checkbox. The checkbox is shown as a square box that is ticked (checked) when activated. Checkboxes are used to let a user select one or more options of a limited number of choices. Tip: Always add the <label> tag for best accessibility practices!

Whenever the user checks or uncheck any checkbox, it invokes the handleChage() function. In the handleChange() function, we check if the checkbox is checked and add the checkbox value to the allChecked array. If the checkbox is unchecked, we remove the checkbox value from the allChecked array.

Create the function checkClickFunc() which is to be executed upon clicking the checkbox. Using the ?getElementById()? method, retrieve the checkbox by its id, ?agree?. Check the checkbox's status by using the ?checked? attribute. If it's ?true?, show an alert message ?Checkbox is clicked?.

Use the onclick event Whenever we click on any element, the onclick event triggers that particular element. We can also use the onclick event with a checkbox. So, whenever the user checks or unchecks the checkbox, we can invoke any function using the onclick event attribute.

The state can be changed by providing the new state value or an updater function. The updater function takes the current state and returns the new state. The state related to a checkbox input is a boolean. When the state is false the checkbox is unchecked, when the state is true the checkbox is checked.

Summary Use the <input> element with the type checkbox to create a checkbox element. Place a checkbox inside a label element to improve the usablity and accessibility. Use checkbox. checked property or :check selector to test if a checkbox is checked. Get the value attribute to get the value of a checkbox.