Reference/Operators/Object ExpressionMongoDB Query Language (MQL) Object Expression OperatorsObject expression operators perform operations on objects and object properties.$mergeObjectsThe $mergeObjects operator merges multiple documents into a single document$objectToArrayThe objectToArray command is used to transform a document (object) into an array of key-value pairs.$setFieldThe setField command is used to add, update, or remove fields in embedded documents.
Reference/Operators/Object ExpressionMongoDB Query Language (MQL) Object Expression OperatorsObject expression operators perform operations on objects and object properties.$mergeObjectsThe $mergeObjects operator merges multiple documents into a single document$objectToArrayThe objectToArray command is used to transform a document (object) into an array of key-value pairs.$setFieldThe setField command is used to add, update, or remove fields in embedded documents.