tsconfig.json

{
    "compilerOptions": {
        "target": "es2019",
        "module": "es6",
        "lib": [
            "es2017",
            "es2018.intl",
            "es2018.promise",
            "es2019.array",
            "es2019.object",
            "es2019.string",
            "es2020.promise",
            "dom",
            "dom.iterable"
        ],
        "baseUrl": ".",
        "paths": {},
        "types": [],
        "importsNotUsedAsValues": "error",
        /* Strict Type-Checking Options */
        "strict": true /* Enable all strict type-checking options. */,
        "noImplicitAny": false /* Raise error on expressions and declarations with an implied 'any' type. */,
        "strictNullChecks": true /* Enable strict null checks. */,
        "strictFunctionTypes": true /* Enable strict checking of function types. */,
        "strictBindCallApply": true /* Enable strict 'bind', 'call', and 'apply' methods on functions. */,
        "strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
        "noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
        "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
        /* Module Resolution Options */
        "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */,
        "allowSyntheticDefaultImports": true /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */,
        "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
        "jsx": "react",
        "noEmitHelpers": true,
        "importHelpers": true
    },
    "include": [
        "./src/ts/*.ts"
    ]
}