tsconfig.json

{
  "compilerOptions": {
    "rootDir": ".",
    "outDir": "build",

    // vue-cli depends on webpack4 which doesn't support es2020. webpack 5 does.
    // so, to support version of vue-cli that are in use (August 2021),
    // downgrade target to es2019.
    "target": "es2019",
    "module": "es2020", // es2020 includes support for dynamic imports, and import.meta
    "esModuleInterop": true,
    "moduleResolution": "node",
    "resolveJsonModule": true,

    "lib": ["es2020", "dom", "dom.iterable", "scripthost"],
    // Do not include all the type definitions in `node_modules/@types`,
    // which include NodeJS definitions that are not applicable to a web app
    // but only those type definitions that are required
    "typeRoots": [],
    "types": [
      "./node_modules/@types/css-font-loading-module",
      "./node_modules/@types/jest"
    ],

    "emitDecoratorMetadata": false,
    "experimentalDecorators": false,

    // Test files for Jest are in JS
    // "allowJs": true,

    "strictNullChecks": true,
    "noImplicitAny": false,
    "noLib": false,

    // We'll strip the comments with rollup but we need them for the declaration files
    "removeComments": false,
    "baseUrl": "src",
    "sourceMap": true,

    "incremental": true,
    "tsBuildInfoFile": "./build/ts-cache.tsbuildinfo"
  },
  "exclude": [
    "coverage",
    "test",
    "node_modules",
    "**/*.spec.ts",
    "dist",
    "build",
    "examples",
    "docs",
    "tutorials",
    "**/*.config.js"
  ]
}