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| 1 | +import * as React from 'react'; |
| 2 | +import { |
| 3 | + Routes, |
| 4 | + Route, |
| 5 | + Outlet, |
| 6 | + Link, |
| 7 | + NavLink, |
| 8 | + useParams, |
| 9 | + useNavigate, |
| 10 | + useSearchParams, |
| 11 | +} from 'react-router-dom'; |
| 12 | + |
| 13 | +const App = () => { |
| 14 | + const navigate = useNavigate(); |
| 15 | + |
| 16 | + const [users, setUsers] = React.useState([ |
| 17 | + { id: '1', fullName: 'Robin Wieruch' }, |
| 18 | + { id: '2', fullName: 'Sarah Finnley' }, |
| 19 | + ]); |
| 20 | + |
| 21 | + const handleRemoveUser = (userId) => { |
| 22 | + setUsers((state) => state.filter((user) => user.id !== userId)); |
| 23 | + |
| 24 | + navigate('/users'); |
| 25 | + }; |
| 26 | + |
| 27 | + return ( |
| 28 | + <Routes> |
| 29 | + <Route element={<Layout />}> |
| 30 | + <Route index element={<Home />} /> |
| 31 | + <Route path="home" element={<Home />} /> |
| 32 | + <Route path="users" element={<Users users={users} />}> |
| 33 | + <Route |
| 34 | + path=":userId" |
| 35 | + element={<User onRemoveUser={handleRemoveUser} />} |
| 36 | + /> |
| 37 | + </Route> |
| 38 | + <Route path="*" element={<NoMatch />} /> |
| 39 | + </Route> |
| 40 | + </Routes> |
| 41 | + ); |
| 42 | +}; |
| 43 | + |
| 44 | +const Layout = () => { |
| 45 | + const style = ({ isActive }) => ({ |
| 46 | + fontWeight: isActive ? 'bold' : 'normal', |
| 47 | + }); |
| 48 | + |
| 49 | + return ( |
| 50 | + <> |
| 51 | + <h1>React Router</h1> |
| 52 | + |
| 53 | + <nav |
| 54 | + style={{ |
| 55 | + borderBottom: 'solid 1px', |
| 56 | + paddingBottom: '1rem', |
| 57 | + }} |
| 58 | + > |
| 59 | + <NavLink to="/home" style={style}> |
| 60 | + Home |
| 61 | + </NavLink> |
| 62 | + <NavLink to="/users" style={style}> |
| 63 | + Users |
| 64 | + </NavLink> |
| 65 | + </nav> |
| 66 | + |
| 67 | + <main style={{ padding: '1rem 0' }}> |
| 68 | + <Outlet /> |
| 69 | + </main> |
| 70 | + </> |
| 71 | + ); |
| 72 | +}; |
| 73 | + |
| 74 | +const Home = () => { |
| 75 | + return ( |
| 76 | + <> |
| 77 | + <h2>Home</h2> |
| 78 | + </> |
| 79 | + ); |
| 80 | +}; |
| 81 | + |
| 82 | +const Users = ({ users }) => { |
| 83 | + const [searchParams, setSearchParams] = useSearchParams(); |
| 84 | + |
| 85 | + const searchTerm = searchParams.get('name') || ''; |
| 86 | + |
| 87 | + const handleSearch = (event) => { |
| 88 | + const name = event.target.value; |
| 89 | + |
| 90 | + if (name) { |
| 91 | + setSearchParams({ name: event.target.value }); |
| 92 | + } else { |
| 93 | + setSearchParams({}); |
| 94 | + } |
| 95 | + }; |
| 96 | + |
| 97 | + return ( |
| 98 | + <> |
| 99 | + <h2>Users</h2> |
| 100 | + |
| 101 | + <input type="text" value={searchTerm} onChange={handleSearch} /> |
| 102 | + |
| 103 | + <ul> |
| 104 | + {users |
| 105 | + .filter((user) => |
| 106 | + user.fullName |
| 107 | + .toLowerCase() |
| 108 | + .includes(searchTerm.toLocaleLowerCase()) |
| 109 | + ) |
| 110 | + .map((user) => ( |
| 111 | + <li key={user.id}> |
| 112 | + <Link to={user.id}>{user.fullName}</Link> |
| 113 | + </li> |
| 114 | + ))} |
| 115 | + </ul> |
| 116 | + |
| 117 | + <Outlet /> |
| 118 | + </> |
| 119 | + ); |
| 120 | +}; |
| 121 | + |
| 122 | +const User = ({ onRemoveUser }) => { |
| 123 | + const { userId } = useParams(); |
| 124 | + |
| 125 | + return ( |
| 126 | + <> |
| 127 | + <h2>User: {userId}</h2> |
| 128 | + |
| 129 | + <button type="button" onClick={() => onRemoveUser(userId)}> |
| 130 | + Remove |
| 131 | + </button> |
| 132 | + |
| 133 | + <Link to="/users">Back to Users</Link> |
| 134 | + </> |
| 135 | + ); |
| 136 | +}; |
| 137 | + |
| 138 | +const NoMatch = () => { |
| 139 | + return <p>There's nothing here: 404!</p>; |
| 140 | +}; |
| 141 | + |
| 142 | +export default App; |
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