React routing problem

<BrowserRouter history={hashHistory}>
  <Router>
    <Route exact path="/" component={ App }/>
    <Route path="/book"   component={ Book } />
  </Router>
</BrowserRouter>


clipboard.png

Mar.29,2021

history= {hashHistory} is removed. It is no longer necessary to write this in 4. 0

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e60957-458b8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e60957-458b8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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