: Failed prop type: You provided a `checked` prop to a form field without an `onChange` handler. This will render a read-only field. If the field should be mutable use `defaultChecked`. Otherwise, set either `onChange` or `readOnly`.
な警告
こんなonChangeとか使わないでchecked={true}とかしてる時になるっぽい
<input
type='radio'
disabled={true}
checked={true}
/>
https://stackoverflow.com/questions/36715901/reactjs-error-warning
checked={true}やめてdefaultCheckedにしよう
- checked={true}
+ defaultChecked
/>
