tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "baseUrl": ".",
    "declaration": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "lib": [
      "DOM",
      "ES2016",
      "ES2017.Object"
    ],
    "module": "CommonJS",
    "moduleResolution": "Node",
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "outDir": "./lib",
    "resolveJsonModule": true,
    "rootDir": "src",
    "skipLibCheck": true,
    "sourceMap": false,
    "strict": true,
    "suppressImplicitAnyIndexErrors": true,
    "target": "ES5"
  },
  "exclude": [
    ".idea",
    "build",
    "coverage",
    "docs",
    "lib",
    "node_modules",
    "scripts",
    "try.js"
  ]
}