API Reference > ecschema-Metadata > Metadata > Constant > toJSON toJSON Method Save this Constants properties to an object for serializing to JSON. toJSON(standalone: boolean, includeSchemaVersion: boolean): ConstantProps Parameter Type Description standalone boolean Serialization includes only this object (as opposed to the full schema). includeSchemaVersion boolean Include the Schema's version information in the serialized object. Returns - ConstantProps Defined in core/ecschema-metadata/src/Metadata/Constant.ts Line 49 Last Updated: 12 June, 2024