• Node.js - https://nodejs.org/en/
• VSCode - https://code.visualstudio.com/
• Postman - https://www.getpostman.com/
• Git - https://git-scm.com/
• MongoDB - https://www.mongodb.com/
• MailTrap - https://mailtrap.io/
• Docgen - https://github.com/thedevsaddam/docgen
• MapQuest Dev API - https://developer.mapquest.com/

Answer: All APIs of Node.js library are aynchronous that is non-blocking. It essentially means a Node.js based server never waits for a API to return data. Server moves to next API after calling it and a notification mechanism of Events of Node.js helps server to get response from the previous API call.

Source: tutorialspoint.com

Answer: MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling. It's Key Features are:

• Document Oriented and NoSQL database.

Answer: JavaScript has both strict and type–converting comparisons:

• Strict comparison (e.g., ===) checks for value equality without allowing coercion
• Abstract comparison (e.g. ==) checks for value equality with coercion allowed