tsconfig.json

{
  "compilerOptions": {
    /* Visit https://aka.ms/tsconfig to read more about this file */
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "sourceMap": true,
    "noImplicitAny": false,
    "removeComments": true,
    "preserveConstEnums": true,
    "noEmitHelpers": true,
    "outDir": "dist",
    "rootDir": "src",
    /* Language and Environment */
    "target": "ESNext", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    /* Modules */
    "module": "NodeNext", /* Specify what module code is generated. */
    "moduleResolution": "NodeNext",
    /* Emit */
    "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
    "esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
    "forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */
    /* Type Checking */
    "strict": true, /* Enable all strict type-checking options. */
    "strictNullChecks": false, /* When type checking, take into account null and undefined. */
    "skipLibCheck": true, /* Skip type checking all .d.ts files. */

    "allowJs": true, 
    "declaration": true
  }
}