Node.js Test

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Type

Programming Skills

Time

10 minutes

Level

Medium

Questions

About the Test

The questions given are some basic topics of node.js, major libraries used in node.js, the buffer, and some coding questions.

Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. It allows developers to run JavaScript on the server side, enabling them to build server-side applications and APIs using the same language they use on the client side. Node.js is known for its high performance and efficiency, as well as its ability to handle a large number of concurrent connections. It is commonly used for building real-time applications, such as chat or gaming servers, and for building APIs and microservices. Node.js is open-source and cross-platform, meaning it can be run on a wide range of operating systems, including Windows, macOS, and Linux.

Skills Measured

General Node.js
Node.js library
Code-based questions
Node.js buffer

Roles

Backend Developer
Frontend Developer
Software Developer
Javascript Developer
Full stack Developer

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General Node.js

Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. It is a popular platform for building server-side applications and APIs, allowing developers to run JavaScript on the server side. Node.js is known for its high performance and efficiency, as well as its ability to handle a large number of concurrent connections.

Node.js library

In Node.js, a library is a collection of pre-written code that can be used to perform everyday tasks, such as reading and writing files, making HTTP requests, or working with databases. These libraries, or “modules” as they are called in Node.js, can be installed and used in your Node.js applications to save time and effort. Some popular libraries and modules in Node.js include the fs (file system) module, the HTTP module, and the express module.

Code based questions

Code-based questions in Node.js typically refer to questions that require a code example or solution to be written in Node.js. These questions might include implementing a specific algorithm, creating a Node.js server or API, or using a specific Node.js module or library. Code-based questions in Node.js can be challenging, as they require a deep understanding of Node.js and its capabilities and the ability to write efficient and effective code.

Node.js buffer

In Node.js, a buffer is a piece of memory that stores binary data. Buffers are used in Node.js to temporarily hold data being transferred between different parts of the application or between the application and external sources such as files or network connections. Buffers are helpful because they can be read and written more efficiently than JavaScript strings, which are limited by the available memory size. In Node.js, the Buffer class provides methods for working with buffers, including strategies for creating, reading from, and writing to buffers.

The test is created by a subject-matter expert

Testlify’s skill tests are designed by experienced SMEs (subject matter experts). We evaluate these experts based on specific metrics such as expertise, capability, and their market reputation. Prior to being published, each skill test is peer-reviewed by other experts and then calibrated based on insights derived from a significant number of test-takers who are well-versed in that skill area. Our inherent feedback systems and built-in algorithms enable our SMEs to refine our tests continually.

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Frequently Asked Questions for Node.js

Node.js Developers are primarily responsible for writing server-side code written in the JavaScript base language. This code enables front-end components and back-end components to communicate with ease. They will devote much time to helping the front-end developers’ integration.

A Node.js Developer must be highly proficient in JavaScript, have a fundamental understanding of security, and be up to date with the latest web frameworks.

Backend Developer
Frontend Developer
Software Developer
Javascript Developer
Full stack Developer

General Node.js
Node.js library
Code-based questions
Node.js buffer

Developing server-side applications and APIs using Node.js.
Writing and maintaining efficient, reusable, and reliable JavaScript code.
Implementing performance and security best practices.
Collaborating with other team members and stakeholders to define and refine requirements and design solutions.

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