tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "downlevelIteration": true,
    "importHelpers": true,
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "allowUnreachableCode": false,
    "noUnusedParameters": false,
    "noUnusedLocals": false,
    "noImplicitReturns": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "target": "es2015",
    "typeRoots": [
      "node_modules/@types",
      "typings"
    ],
    "lib": [
      "es2017",
      "dom"
    ],
    "module": "es2020",
    "baseUrl": "./",
    "paths": {
      "jszip": [
        "node_modules/jszip/dist/jszip.min.js"
      ]
    },
    "strict": true
  },
  "angularCompilerOptions": {
    "preserveWhitespaces": true,
    "strictMetadataEmit": true
  }
}