tsconfig.json

{
  "compilerOptions": {
      "target": "es2020",
      "module": "commonjs",
      "moduleResolution": "node",
      "noImplicitAny": true,
      "removeComments": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "forceConsistentCasingInFileNames": false,
      "allowSyntheticDefaultImports": true,
      "esModuleInterop": true,
      "strictFunctionTypes": true,
      "incremental": true,
      "sourceMap": true,
      "noUnusedLocals": true,
      "strictNullChecks": true,
      "outDir": "build",
      "baseUrl": "./src",
      "lib": ["dom", "es6", "es2016.array.include", "es2017", "es2019"],
      "skipLibCheck": true,
      "types": ["node", "jest"]
      
  },
  "exclude": ["node_modules", "jest.config.ts"],
  "compileOnSave": false,
  "buildOnSave": false
}