Free NestJS Introduction Question and Answers

Question 1

What is included in the comparison because it works at a lower layer than Loopback?

Accepted Answer

ExpressJS

Answer

ExpressJS is a minimalist and flexible Node.js web application framework that operates at a relatively low level, providing core routing and middleware functionalities. LoopBack, on the other hand, is a more opinionated framework built on top of Express, offering higher-level abstractions for API development. Therefore, ExpressJS is often included in comparisons because it represents the foundational layer beneath frameworks like LoopBack.

Question 2

What are the capabilities of a module described as?

Accepted Answer

A collection of closely related capabilities

Answer

In NestJS, a module is a fundamental organizational unit that encapsulates a collection of closely related capabilities. This includes components like controllers, providers, and other modules, all working together to achieve a specific feature or domain. This structure promotes clear separation of concerns, reusability, and maintainability within the application.

Question 3

What is the framework entirely in?

Accepted Answer

TypeScript

Answer

NestJS is built entirely with and heavily leverages TypeScript. This choice provides strong typing, which enhances code quality, maintainability, and developer tooling, especially for large-scale applications. TypeScript's features are integral to NestJS's architecture, enabling a more robust and predictable development experience.

Question 4

What is the name of the framework that helps build Node. JS server-side applications?

Accepted Answer

Nest

Answer

NestJS is a progressive Node.js framework specifically designed to build efficient, scalable, and reliable server-side applications. It adopts a structured approach, drawing inspiration from Angular's architecture, and combines elements of object-oriented programming, functional programming, and reactive programming to streamline backend development.

Question 5

What does JS divide files into?

Accepted Answer

Modules

Answer

Modern JavaScript (JS) development heavily relies on the concept of modules to organize code. Modules allow developers to divide their application into separate, self-contained files, each exporting and importing specific functionalities. This approach promotes better code organization, reusability, and efficient dependency management.

NestJS Practice Test

NestJS Practice Test

Free NestJS Introduction Question and Answers