Unite Checkbox Form For Free

The validation of the checkbox in javascript can be done using the checked property of the checkbox element. This property returns true when the checkbox is selected. The addEventListener() method can be used to apply the change event to the checkbox to validate whenever the user interacts with the checkbox.

If you have a group of checkboxes, then provide each checkbox with a common name and then access all the checkboxes through their name and loop through each element and check if it is checked or not.

If there are multiple checkboxes (group), you only have to add the directive on one of them. If multiple values are selected, the validator will apply the validations on each checkbox. In the following example, the most basic use of checkboxes validation is the terms and conditions agreement that nobody reads.

Inside the Validate function, first the HTML Table is referenced and then all the CheckBoxes inside it are referenced. Then using a loop, the Total count of the checked (selected) CheckBoxes is determined and displayed using JavaScript Alert Message Box.

You can also use the below code to get all checked checkboxes values. <script> document.getElementById('btn').onclick = function() { var markedCheckbox = document.querySelectorAll('input[type="checkbox"]:checked'); for (var checkbox of markedCheckbox) { document.body.append(checkbox.value + ' '); } } </script>

How to add a checkbox in forms using HTML ? Firstly, create an HTML document that contains a <input> tag. Now use the type attribute with <input> element. Set the type attribute to value ?checkbox?

Shift + Click To Select Multiple Checkboxes.

You can also use the below code to get all checked checkboxes values. <script> document.getElementById('btn').onclick = function() { var markedCheckbox = document.querySelectorAll('input[type="checkbox"]:checked'); for (var checkbox of markedCheckbox) { document.body.append(checkbox.value + ' '); } } </script>