tsconfig-base.json

{
  "compilerOptions": {
    "plugins": [
      {"name": "typescript-tslint-plugin"}
    ],
    "typeRoots": ["./typings", "./node_modules/@types"],
    "outDir": "./dist",
    "target": "es2017",
    "declaration": true,
    "module": "commonjs",
    "lib": ["es2017"],
    "noUnusedLocals": true,
    "noErrorTruncation": true,
    "pretty": true,
    "strict": true
  }
}