[英]I got an "Uncaught TypeError: undefined is not a function" while trying to render the filter functionality on my todo list on React
I got an "Uncaught TypeError: undefined is not a function" on the following line of code while trying to render the filter functionality on my todo list on React当我尝试在 React 上的待办事项列表上呈现过滤器功能时,我在以下代码行中收到“未捕获的类型错误:未定义不是函数”
.filter(FILTER_MAP[filter])
.map((task)=> (
<Todo
id={task.id}
name={task.name}
completed={task.completed}
key={task.id}
toggleTaskCompleted={toggleTaskCompleted}
deleteTask={deleteTask}
editTask={editTask}
/>
));```
just something wrong in key={task.id} and try to change只是 key={task.id} 有问题并尝试更改
key={task.key}
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