如何使用 jQuery Validate 建立自訂複選框驗證規則？

jQuery.validator.addMethod("requiresCheckboxChecked", function(value, element) {
    // Checkboxes are grouped by their name attribute
    var group = $('[name=' + element.name + ']');

    // OPTIONAL: element.name must explicitly match the group's name
    // Group can include elements with other names if grouped by another attribute
    // var group = $('[data-group=' + element.name + ']');

    // Return false if no checkboxes are checked in the group
    return this.optional(element) || group.filter(':checked').length > 0;
}, "* At least one checkbox in this group must be checked");

$('form').validate({
    rules: {
        checkboxGroup: {
            requiresCheckboxChecked: true
        }
    }
});