Author: Mayur Hanwate

What is monngoDB?MongoDB is a source-available, cross-platform NoSQL document database. It stores data in JSON-like formats, known as documents, which are grouped into collections.MongoDB is a highly scalable database, offering both horizontal and vertical scaling to ensure availability across geographic regions. This makes it ideal for handling large, distributed datasets.Being an unstructured database, MongoDB allows flexibility in document structure. You can have any number of fields or omit fields as needed, unlike SQL databases where fields must exist but can be left empty. While MongoDB is schema-less by default, you can define a fixed schema for certain fields if needed,…

Whenever the call stack receives asynchronous operations such as setTimeout, setImmediate, API calls, or file system operations, Node.js offloads these tasks to libuv.libuv is a C library that manages how asynchronous tasks should be executed. It interacts with the operating system’s kernel when needed to perform tasks like I/O operations efficiently.The event loop is what allows Node.js (via libuv) to coordinate and manage these asynchronous operations. The event loop has several phases where different types of tasks are processed. In total, there are six phases, though four are the main ones typically mentioned:Timers phase:Executes callbacks scheduled by setTimeout() and setInterval().…