import * as React from 'react'; import Box from '@mui/material/Box'; import LinearProgress from '@mui/material/LinearProgress'; export default function LinearDeterminate() { const [progress, setProgress] = React.useState(0); React.useEffect(() => { const timer = setInterval(() => { setProgress((oldProgress) => { if (oldProgress === 100) { return 0; } const diff = Math.random() * 10; return Math.min(oldProgress + diff, 100); }); }, 500); return () => { clearInterval(timer); }; }, []); return ( ); }