mongoose: Typescript Schema definition is incorrect

version 5.11.0 mongoose

Reporting a bug

cannot pass two parameters to new Schema ();

 error TS2554: Expected 0-1 arguments, but got 2.

20     const ModelSchema = new Schema(modelSettings.fields,{
                                                           ~
21         ...defaultSchemaOptions,
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22         ...modelSettings.schemaOptions,
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23     });

What is the expected behavior?

Schema should accept two parameters.

What are the versions of Node.js, Mongoose and MongoDB you are using? Note that “latest” is not a version.

version 5.11.0 mongoose version 12.18.3 node

the fault lies in mongoose/index.d.ts

    /**
     * Create a new schema
     */
    constructor(definition?: SchemaDefinition);

the @types/mongoose/index.d.ts has the correct constructor definition.

  class Schema<T = any> extends events.EventEmitter {
    /**
     * Schema constructor.
     * When nesting schemas, (children in the example above), always declare
     * the child schema first before passing it into its parent.
     * @event init Emitted after the schema is compiled into a Model.
     */
    constructor(definition?: SchemaDefinition, options?:SchemaOptions  );

note the “options?:SchemaOptions”.

my code is picking up the mongoose/index.d.ts, not @types but that’s another battle.

thanks