tsconfig.json

tsconfig.json

{
 "compilerOptions": {
   "declaration": true,
   "declarationDir": "build",
   "module": "esnext",
   "target": "es5",
   "lib": ["es6", "dom", "es2016", "es2017"],
   "sourceMap": true,
   "jsx": "react",
   "moduleResolution": "node",
   "allowSyntheticDefaultImports": true,
   "esModuleInterop": true
  },
 "include": ["src/**/*"],
 "exclude": [
  "node_modules",
  "build"
 ]
}