validate(); document.querySelectorAll('input[name="provider"]').forEach((input) => { input.addEventListener("change", validate); }); function validate() { const checkedMfaMethod = document.querySelector( 'input[name="provider"]:checked' ); const submitButton = document.querySelector( 'button.lgn-raised-button[type="submit"]' ); if (checkedMfaMethod && submitButton) { submitButton.disabled = false; } else if (submitButton) { submitButton.disabled = true; } }