tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    "module": "CommonJS",
    "target": "ESNext",
    "lib": ["esnext", "dom", "dom.iterable"],
    "sourceMap": true,
    "jsx": "react-jsx",
    "moduleResolution": "node",
    "rootDir": "src",
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noImplicitAny": true,
    "importHelpers": true,
    "strictNullChecks": true,
    "ignoreDeprecations": "5.0",
    "suppressImplicitAnyIndexErrors": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "noFallthroughCasesInSwitch": true,
    "baseUrl": "./src/",
    "typeRoots": ["./node_modules", "src/common/typedefs"],
    "types": ["@types/chrome", "@types/node", "@types/jest"],
    "strictPropertyInitialization": true
  },
  "include": ["src"],
  "exclude": []
}