tsconfig.json

{
  "compilerOptions": {
    "target": "es2017",
    "types": ["node", "jest"],
    "typeRoots": ["node_modules/@types", "typings"],
    "lib": ["es2015", "es2016", "es2017", "es2018", "dom"],
    "strict": true,
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "declaration": true,
    "esModuleInterop": true,
    "downlevelIteration": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false,
    "allowJs": false,
    "skipLibCheck": true,
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "importHelpers": true,
    "baseUrl": "src",
    "outDir": "./dist",
    "paths": {
      "@app": ["./app.ts"],
      "@components/*": ["components/*"]
    },
    "plugins": [{ "transform": "ts-optchain/transform" }]
  },
  "exclude": [
    "dist",
    "node_modules",
    "test/**/*",
    "ci/**/*",
    "scripts/**/*",
    "__mocks__/**/*",
    "**/node_modules/**/*",
    "**/dts/**/*",
    "**/dist/**/*",
    "**/*.(spec|test).ts"
  ],
  "compileOnSave": true,
  "typeAcquisition": {
    "enable": true
  }
}