tsconfig.json

{
  "compilerOptions": {
    "outDir": "build",
    "module": "esnext",
    "target": "esnext",
    "lib": ["esnext", "webworker"],
    "sourceMap": false,
    "allowJs": false,
    "importHelpers": false,
    "declaration": false,
    "moduleResolution": "node",
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "suppressImplicitAnyIndexErrors": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "esModuleInterop": false
  },
  "external": ["tslib"],
  "include": ["src"],
  "exclude": ["node_modules", "build", "**/__tests__/**"]
}