React input maxLength and only number

經過測試 type="number" maxLength會無效
目前這方法可用

<input type="text"
style={{ textAlign: "right" }}                    
maxLength={9}
onChange={onlynumber} />

const onlynumber = (e) => {
      //去掉非數字
       e.target.value = e.target.value.replace(/\D/g, '');
       //todo anything
};

參考資料
Create a Numbers only Input field in React.js