tsconfig.json

{
  "compilerOptions": {
    "baseUrl": "./",
    // enables project relative paths config
    "paths": {
      // define paths mappings
      "@src/*": [
        "src/*"
      ]
      // will enable -> import { ... } from '@src/components'
      // in webpack you need to add -> resolve: { alias: { '@src': PATH_TO_SRC } }
    },
    "outDir": "dist/",
    // target for compiled files
    "allowSyntheticDefaultImports": true,
    // no errors with commonjs modules interop
    // "esModuleInterop": true,
    "allowJs": true,
    // include js files
    "checkJs": true,
    // typecheck js files
    "declaration": false,
    // don't emit declarations
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "importHelpers": true,
    // importing helper functions from tslib
    "noEmitHelpers": true,
    // disable emitting inline helper functions
    "jsx": "react",
    // process JSX
    "lib": [
      "dom",
      "es2016",
      "es2017.object"
    ],
    "target": "es5",
    // "es2015" for ES6+ engines
    "module": "commonjs",
    // "es2015" for tree-shaking
    "moduleResolution": "node",
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "strict": true,
    "pretty": true,
    "removeComments": true,
    "sourceMap": true
  },
  "include": [
    "src/**/*"
    // to change
  ],
  "exclude": [
    "node_modules",
    "src/**/*.spec.*"
  ]
}