CODE EXAMPLE FOR JAVASCRIPT

next js material ui typescript

npx create-next-app app-name --typescript

// install material ui 
npm install @mui/material @emotion/react @emotion/styled

// edit tsconfig.json
{
  "compilerOptions": {
    "lib": ["es6", "dom"],
    "noImplicitAny": true,
    "noImplicitThis": true,
    "strictNullChecks": true
  }
}