tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "allowJs": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noFallthroughCasesInSwitch": true,
    "strictNullChecks": true,
    "downlevelIteration": true,
    "baseUrl": ".",
    "importHelpers": true,
    "module": "esnext",
    "outDir": ".",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "resolveJsonModule": true,
    "strict": true,
    "target": "es2015",
    "typeRoots": ["node_modules/@types", "node_modules/@types/", "types"],
    "lib": ["es2017", "dom"],
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "isolatedModules": true,
    "skipLibCheck": true,
    "skipDefaultLibCheck": true,
    "paths": {}
  },
  "exclude": ["node_modules", "tmp"]
}