React-Redux-从列表中删除项目

// actions.js
export const deleteProject = (projectId) => {
  return {
    type: 'DELETE_PROJECT',
    payload: projectId
  };
};

// reducer.js
const initialState = {
  projects: [
    { id: 1, name: 'Project 1' },
    { id: 2, name: 'Project 2' },
    { id: 3, name: 'Project 3' }
  ]
};

const reducer = (state = initialState, action) => {
  switch (action.type) {
    case 'DELETE_PROJECT':
      return {
        ...state,
        projects: state.projects.filter(project => project.id !== action.payload)
      };
    default:
      return state;
  }
};

export default reducer;

// ProjectList.js
import React from 'react';
import { connect } from 'react-redux';
import { deleteProject } from './actions';

const ProjectList = ({ projects, deleteProject }) => {
  return (
    <ul>
      {projects.map(project => (
        <li key={project.id}>
          {project.name}
          <button onClick={() => deleteProject(project.id)}>删除</button>
        </li>
      ))}
    </ul>
  );
};

const mapStateToProps = state => {
  return {
    projects: state.projects
  };
};

const mapDispatchToProps = {
  deleteProject
};

export default connect(mapStateToProps, mapDispatchToProps)(ProjectList);