tsconfig.json

{
  "files": [
      "src/index.ts"
  ],
  "compilerOptions": {
    "outDir": "./dist",
    "declaration": true,
    "declarationMap": true,
      "target": "ES2018",
      "lib": [
          "dom",
          "dom.iterable",
          "esnext"
      ],
      "allowJs": true,
      "skipLibCheck": true,
      "esModuleInterop": true,
      "allowSyntheticDefaultImports": true,
      "strict": true,
      "forceConsistentCasingInFileNames": true,
      "noFallthroughCasesInSwitch": true,
      "module": "esnext",
      "moduleResolution": "node",
      "resolveJsonModule": true,
      "isolatedModules": true,
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "prettier": {
    "trailingComma": "all",
    "useTabs": false,
    "tabWidth": 2,
    "semi": true,
    "singleQuote": false,
    "bracketSpacing": true,
    "printWidth": 120
  },
}