javascript - React-Table 动态表头怎么做？

Question

我想给列中的标题一个日期，但是当我尝试减去一天时出现错误。如果您能提供帮助，我将不胜感激。

     codes : 

          render(){
          const t = new Date();


          const t1 = new Date();
          t1.setDate(t1.getDate() - 1);


         columns = [{
          {Header:t},
          {Header:t1}
         }]

         return{ 
          <ReactTable
          Columns={columns}
          />
         }
       }

我希望 t1 下降 1 天没问题 t 的标题显示今天的日期，但我没有显示 t1 标题我想要一天的不足并给出以下错误。

{
Objects are not valid as a React child (found: Tue Apr 09 2019 12:19:07 GMT+0300 (GMT+03:00)). If you meant to render a collection of children, use an array instead.
    in div (created by ReactTable)
    in div (created by ThComponent)
    in ThComponent (created by ReactTable)
    in div (created by TrComponent)
    in TrComponent (created by ReactTable)
    in div (created by Thead)
    in Thead (created by ReactTable)
    in div (created by TableComponent)
    in TableComponent (created by ReactTable)
    in div (created by ReactTable)
    in ReactTable (at drivingHours.jsx:229)
    in div (created by Col)
    in Col (created by Context.Consumer)
    in ForwardRef(Bootstrap(Col)) (at drivingHours.jsx:228)
    in div (created by Row)
    in Row (created by Context.Consumer)
    in ForwardRef(Bootstrap(Row)) (at drivingHours.jsx:227)
    in div (created by Col)
    in Col (created by Context.Consumer)
    in ForwardRef(Bootstrap(Col)) (at drivingHours.jsx:226)
    in DrivingHours (created by Connect(DrivingHours))
    in Connect(DrivingHours) (at driverReports.jsx:42)
    in div (created by TabPane)
    in Transition (created by Fade)
    in Fade (created by TabPane)
    in TabPane (created by Context.Consumer)
    in ForwardRef(Bootstrap(TabPane)) (created by Context.Consumer)
    in ForwardRef(ContextTransform) (created by Tabs)
    in div (created by TabContent)
    in TabContent (created by Context.Consumer)
    in ForwardRef(Bootstrap(TabContent)) (created by Tabs)
    in TabContainer (created by Tabs)
    in Tabs (created by Uncontrolled(Tabs))
    in Uncontrolled(Tabs) (at src/index.js:127)
    in ForwardRef (at driverReports.jsx:27)
    in section (at driverReports.jsx:26)
    in ControlledTabs (created by Connect(ControlledTabs))
    in Connect(ControlledTabs) (created by Route)
    in Route (at app/index.js:48)
    in Switch (at app/index.js:41)
    in main (at app/index.js:40)
    in div (created by Row)
    in Row (created by Context.Consumer)
    in ForwardRef(Bootstrap(Row)) (at app/index.js:28)
    in div (created by Container)
    in Container (created by Context.Consumer)
    in ForwardRef(Bootstrap(Container)) (at app/index.js:27)
    in App (created by Connect(App))
    in Connect(App) (created by Route)
    in Route (created by withRouter(Connect(App)))
    in withRouter(Connect(App)) (at src/index.js:14)
    in div (at src/index.js:13)
    in Router (created by ConnectedRouter)
    in ConnectedRouter (created by Connect(ConnectedRouter))
    in Connect(ConnectedRouter) (at src/index.js:12)
    in Provider (at src/index.js:11)}
    ```

标签： javascriptreactjsredux

Answer 1

我解决了这个问题：

代码：

      render(){
      const t = new Date();


      const t1 = new Date();
      t1.setDate(t1.getDate() - 1);


     columns = [{
      {Header:t},
      {Header:t1.toISOString().split('T')[0]} /// format fixed, solved problem.
     }]

     return{ 
      <ReactTable
      Columns={columns}
      />
     }
   }