Can a child component pass a function with an id parameter to the parent component?
P粉550323338
P粉550323338 2024-03-20 10:58:24
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Is it possible to pass a function with an id parameter from a child component to a parent component using React? I'm trying to pass the function as a prop to it's parent component. The component solution is App component-> TasksList component-> Task component. So I need to route to a specific task by clicking on it, and use its individual ID. The point is, when the url is clicked and routed to the task, it changes to /task/009, but the task component does not render.

https://codesandbox.io/s/test-login-page-tasks-rmfn5j?file=/src/components/Taskslist.js

//App component
const Tasks = [
  {
    id: "001",
    status: 0,
    priority: 2,
    title: "Develop website homepage",
    description:
      "Create a visually appealing and responsive homepage for the website",
    schedule: {
      creation_time: "2021-07-23T10:00:00"
    },
    author_name: "John Smith"
  },
  {
    id: "002",
    status: 1,
    priority: 1,
    title: "Implement user authentication",
    description: "Add user authentication feature to the website",
    schedule: {
      creation_time: "2021-07-24T14:30:00"
    },
    author_name: "Sarah Lee"
  }
  ]
  
  function App() {
  const [tasks, setTasks] = useState(Tasks);
  return (
  
    <Route path="/taskslist">
      <Taskslist Tasks={tasks} />
    </Route>
  )

// Parent component
import React from "react";

const Taskslist = ({ Tasks }) => {
  const history = useHistory();

  const goToTask = (taskId) => {
    history.push(`/task/${taskId}`);
  };

  return (
    <Task
      Tasks={Tasks.filter((task) => task.status === 0)}
      goToTask={goToTask}
    />
}

//Child component

import React from "react";

const Task = ({ Tasks, goToTask }) => {
  return (
    <div className="wrapper">
      {Tasks.map((task) => (
        <div key={task.id} onClick={goToTask(task.id)}>
          <h3>{task.title}</h3>
        </div>
      ))}
    </div>
  );
};

export default Task;

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P粉550323338

reply all(1)
P粉562845941

Multiple questions

  1. This line is where I was able to see the first issue. You are calling goToTask immediately.
  2. In your application components, you do not render task components for individual task routes. To solve this problem, you can define a route for a single task in the application component and render the task component for that route, like this:

  3. function App() {
      const [tasks, setTasks] = useState(Tasks);
    
      return (
        
          
            
              
            
            
              
            
          
        
      );
    }
    
    1. In the Task component you need to ensure that the selected task is filtered from the URL. Use useParams()
    import { useParams } from "react-router";
    
    const Task = ({ Tasks }) => {
      const { id } = useParams();
      const task = Tasks.find((task) => task.id === id);
    
      return (
        

    {task.title}

    {task.description}

    {/* ... */}
    ); };

    Let me know if I need further assistance.

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