MongoDB is an open source, cross platform document oriented database program that uses JSON-like documents with schemas. It makes data integration faster and easier by storing it in a structured form. Basically, this document-oriented database is designed keeping high performance and boundless scale in mind.
MongoDB offers some extraordinary features like efficient load balancing, field indexing, consistency, replication, aggregation framework, flexible data processing, enterprise management & integration, etc.
Advantages of AngularJS include faster application development, high-level efficiency, cross browser compliance, user experience, filters, reusable components and professional support.