tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "rootDir": ".",
    "baseUrl": "",
    "outDir": "dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "resolveJsonModule": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "target": "es2015",
    "module": "es2020",
    "lib": [
      "es2017",
      "es2016",
      "es2015",
      "dom"
    ],
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "forceConsistentCasingInFileNames": true,
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "pretty": true,
    "strict": true,
    "strictPropertyInitialization": false,
    "emitDecoratorMetadata": true,
    "allowJs": true
  },
  "exclude": [
    "node_modules"
  ],
  "angularCompilerOptions": {
    "strictTemplates": true,
    "fullTemplateTypeCheck": true,
    "annotateForClosureCompiler": true,
    "strictInjectionParameters": true,
    "skipTemplateCodegen": false,
    "preserveWhitespaces": true,
    "skipMetadataEmit": false,
    "disableTypeScriptVersionCheck": true
  }
}