tsconfig.json

{
  "exclude": [
    "node_modules"
  ],
  "compilerOptions": {
    "baseUrl": "src",
    "allowJs": false,
    "checkJs": false,
    "sourceMap": true,
    "experimentalDecorators": true,
    "noImplicitAny": true,
    "keyofStringsOnly": true,
    "moduleResolution": "node",
    "module": "commonjs",
    "target": "es2015",
    "lib": ["es2017", "dom"],
    "jsx": "react"
  }
}