Free NestJS Question and Answers

Question 1

What is the name of NestJS's main competitor?

Accepted Answer

Loopback

Answer

LoopBack is a prominent Node.js framework designed for building APIs and microservices, much like NestJS. Both frameworks aim to provide structured and efficient ways to develop server-side applications, particularly for enterprise-grade solutions. Their similar functionalities and target audiences position LoopBack as a direct competitor to NestJS in the Node.js ecosystem.

Question 2

What does NestJS have limited in terms of capturing?

Accepted Answer

Complex types

Answer

NestJS, while powerful and TypeScript-centric, can sometimes have limitations in dynamically capturing or inferring highly complex types at runtime. This might require developers to use more explicit type annotations or specific decorators for intricate data structures. This characteristic means that dealing with very 'complex types' can be more challenging compared to frameworks with deeper runtime type reflection.

Question 3

What does PWA stand for?

Accepted Answer

Progressive Web Application

Answer

PWA is a widely used acronym in web development that stands for Progressive Web Application. This term describes web applications that leverage modern web capabilities to deliver an enhanced user experience, mimicking the feel and functionality of native mobile applications directly within a web browser.

Question 4

What function does healthcheck perform?

Accepted Answer

Ensuring that your backend application is ready to handle requests

Answer

A health check function is a critical component in modern backend applications, especially in microservice architectures. Its primary purpose is to provide an endpoint that external systems, such as load balancers or container orchestrators, can query to determine if the application is operational, responsive, and ready to process incoming requests. This ensures high availability and proper traffic routing.

Question 5

What is a Progressive Web Application?

Accepted Answer

A website that acts like a mobile app

Answer

A Progressive Web Application (PWA) is a web application that utilizes modern web technologies to deliver an experience similar to a native mobile app. PWAs can offer features like offline access, push notifications, and installation to the home screen, bridging the gap between traditional websites and native mobile applications.

NestJS Practice Test

NestJS Practice Test

Free NestJS Question and Answers