Hardik Shah questions

Hardik Shah answers

• $replaceRoot in mongodb aggregation
• Find latest data of a particular fields in mongoDB
• bootstrap tab click preventDefault not working
• Get count from Array of arrays
• How to handle error and send response in GraphQL
• MongoDb: How to import dump data from .gz file?
• How to add hours in datetime in JavaScript [duplicate]
• MongoDB schema: Like a Comment OR a Post