tsconfig.json

{
    "compilerOptions": {
        // output
        "target": "es2015",
        "jsx": "react-jsx",
        "outDir": "./dist/frontend",
        // modules
        "module": "esnext",
        "allowSyntheticDefaultImports": true,
        "esModuleInterop": true,
        "isolatedModules": true,
        "moduleResolution": "node",
        "resolveJsonModule": true,
        // type checking
        "lib": ["dom", "dom.iterable", "esnext"],
        "allowJs": true,
        "checkJs": false,
        "skipLibCheck": true,
        // strictness
        "strict": true,
        "noFallthroughCasesInSwitch": true,
        "forceConsistentCasingInFileNames": true,
        "noImplicitAny": true,
        "noImplicitOverride": true,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true
    },
    "include": ["src/frontend/**/*"]
}