tsconfig.json

{
  "compilerOptions": {
    "lib": [
      "es5",
      "es6",
      "dom",
      "dom.iterable",
      "es2015"
    ],
    "target": "es6",
    "module": "commonjs",
    "moduleResolution": "node",
    "outDir": "./dist",
    "esModuleInterop": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "sourceMap": true,
    "pretty": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "plugins": [
      {
        "name": "typescript-tslint-plugin",
        "alwaysShowRuleFailuresAsWarnings": false,
        "ignoreDefinitionFiles": true,
        "configFile": "./tslint.json",
        "suppressWhileTypeErrorsPresent": false,
        "mockTypeScriptVersion": false
      }
    ],
    "types": [
      "node",
      "jest"
    ],
    "typeRoots": [
      "node_modules/@types"
    ],
    "baseUrl": ".",
    "paths": {
      "*": [
        "node_modules/*"
      ]
    }
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules", "**/*.spec.ts"]
}