tsconfig.json

{
  "extends": "./node_modules/@microsoft/rush-stack-compiler-4.7/includes/tsconfig-web.json",
  "compilerOptions": {
    "target": "es5",
    "forceConsistentCasingInFileNames": true,
    "module": "esnext",
    "moduleResolution": "node",
    "jsx": "react",
    "declaration": true,
    "sourceMap": true,
    "experimentalDecorators": true,
    "skipLibCheck": true,
    "outDir": "lib",
    "inlineSources": false,
    "noImplicitAny": false,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "allowSyntheticDefaultImports": true,
    "strictNullChecks": false,
    "typeRoots": [
      "./node_modules/@types",
      "./node_modules/@microsoft"
    ],
    "types": [
      "webpack-env"
    ],
    "lib": ["es5", "dom", "es2017", "es2017.object", "es2015.collection", "es2015.promise"]
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.tsx"
  ]
}