MERN STACK DEVELOPMENT INTERVIEW QUESTIONS
After the four major technologies that make up the stack, MERN stands for MongoDB, Express, React, and Node. MERN is one of numerous MEAN stack (MongoDB Express Angular Node) variants in which React.js replaces the usual Angular.js frontend framework.
MongoDB is a document-oriented database executive that is used to store data. MongoDB holds data in binary JSON format, which embodies the anthology and documentation theory. MongoDB is a NoSQL database with great performance, scalability, and flexibility in querying and indexing.
ExpressJS is a web application framework that was created to facilitate and host NodeJS projects. ExpressJS is an open-source framework licenced under the MIT licence. It coordinates the workflow between the front end and the database, ensuring that data is transferred quickly and securely. Furthermore, ExpressJS has strong error-handling web design functionality for streamlining online development processes.
It is a Google-managed open-source and front-end web application. AngularJS allows web developers to utilise HTML as a template language and extend HTML’s syntax to clearly and precisely define the components of online applications.
The IDEs that are used for NodeJS programming are listed below.
Atom is a type of atom.
Cloud9 is a company that specialises in cloud computing.
Eclipse is a term used to describe a phenomenon that occurs
Komodo IDE is a software development environment for Komodo lizards.
JetBrainWebStorm is a web development tool by JetBrains.
IntelliJ IDEA by JetBrains
The object document mapper, or mongoose, is used to define objects using a strongly typed schema that can be mapped to a MongoDB document. Mongoose, as a result, provides a schema-based solution for modelling application data. Typecasting, validation, query construction, business logic hooks, and other functionality were also integrated into Mongoose.
In the context of Mongoose and MongoDB, this word is employed. Data modelling is the process of developing a data model for the data at hand before storing it in a database. The data model depicts the data object, its relationship, and the rules that govern how the data is connected.
Data visualisation can be portrayed while business standards, compliance, and policy are enforced through data modelling. Data modelling is used to ensure that conventions, values, semantics, security, and data quality are all consistent.
The Read Eval Print Loop (REPL) is a programme that accepts commands, evaluates them, and prints the results. As a result, REPL works in the same way that Unix or Linux did in terms of creating an environment for entering commands and systems that respond to the output.
|Linear search||Binary search|
|Under linear search, the items will be considered one at a time without performing a jumping function. Linear search classified as O(n) within the time limit for searching of the list.||On the other hand, the binary search starts searching under the middle of the item list. A binary search has been performed to identify the values greater or lesser than the desired value. Binary search is classified as O(logn).|