停止在特定日期执行（Java脚本）

Question

我不明白为什么现在的日期是2020年7月11日，但是下一个代码不起作用：

class LoginBox extends React.Component<>{

       ...

       // Hide navigation bar in login page. Do it inside ComponentDidMount as we need to wait for navbar to render before hiding it.
       componentDidMount(){
          document.getElementById('navigation-bar')!.style.display = "none";
       }

       componentWillUnmount(){
          document.getElementById('navigation-bar')!.style.display = "flex";
       }

       render(){
          return(
              // your login/signup component here
              ...
          )
       }
}

Answer 1

检查给定日期是否等于当前日期

const isToday = (date) => {
  const today = new Date();
  return date.getDate() === today.getDate() &&
    date.getMonth() === today.getMonth() &&
    date.getFullYear() === today.getFullYear();
};

console.log(isToday(new Date('2020/07/14')));
console.log(isToday(new Date('2020/07/11')));