Checkbox

Form validation with checkboxes

Form validation with checkboxes
  1. How do I validate a checkbox in a form?
  2. How do I validate terms and conditions in checkbox?
  3. How do you validate a form with multiple checkboxes to have atleast one checked?

How do I validate a checkbox in a form?

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.

How do I validate terms and conditions in checkbox?

Explanation: In this example, we are using is() method of jQuery to validate if a checkbox is checked or not. If the checkbox is checked, then the alert message with your agreed conditions is displayed, and if the checkbox is not checked, then the alert message with please check terms & conditions is displayed.

How do you validate a form with multiple checkboxes to have atleast one checked?

There is a form with multiple checkboxes and we're going to make sure that at least one is checked using pure JavaScript. To set a custom validation error message, we will use setCustomValidity() method.

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