javascript - 使用 React.JS 选择 - 动态填充选项

Question

我正在尝试将 React/Redux 应用程序的[无状态组件]中的选择填充为:

const FillSelect = ({team}) => <option value={team.onboardingOrder}>{team.name}</option>

const TeamSelector = ({teams}) => {
  return (
    <select>
      <option value="">All</option>
      {
        teams ? (teams => teams.map(team => <FillSelect team={team} />)) : null
      }
    </select>
  )
}

团队看起来像:{0:{id: 1, name: "Program Management", onboardingOrder: 0, …}, 1: {id: 2, name: "Value Capture", onboardingOrder: 1, …}…} .

它返回一个错误:Functions are not valid as a React child. This may happen if you return a Component instead of <Component /> from render. Or maybe you meant to call this function rather than return it. in select ...

发生这种情况是因为我正在使用 map() ？这样做的正确方法是什么？

Answer 1

你没有直接调用map；如果teams是真的，你返回一个函数( teams => ... )。您可能希望该行看起来像这样:

teams ? teams.map(team => <FillSelect team={team} />) : null

这将产生一个数组 <FillSelect />的。