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Nodejs interview questions

Software Development

08 Jan, 2025

Most Frequently asked Node.js Interview Questions

Node.js is a powerful, open-source, cross-platform runtime environment that allows developers to run JavaScript code outside of a web browser. It is built on the V8 JavaScript engine (the same engine used by Google Chrome) and is primarily used for building server-side applications. Node.js enables JavaScript to be used for back-end development, making it possible to use a single programming language (JavaScript) for both client-side and server-side code.

Software Development

08 Jan, 2025

Node.js Interview Questions and Answers

Error handling in Node.js is crucial for ensuring that your application runs smoothly and gracefully handles unexpected situations. Since Node.js is asynchronous and event-driven, it requires a careful approach to error handling, especially in callbacks, promises, and event-driven systems. Here's how you can handle errors in various scenarios in Node.js:

Software Development

08 Jan, 2025

Node.js Interview Questions for 2025

Node.js is a powerful platform for building scalable, fast, and efficient web applications. However, like any technology, it has its own set of advantages and disadvantages. Below are the key pros and cons of using Node.js.

Software Development

08 Jan, 2025

Node.js Interview Questions to Ace Your Interviews

Express.js is a minimalist and flexible web application framework for Node.js that provides a robust set of features for building web and mobile applications. It simplifies the process of handling HTTP requests, routing, middleware integration, and templating, making it a popular choice for developers building server-side applications with Node.js.

Software Development

08 Jan, 2025

Node.js Interview Questions

Event-driven architecture in Node.js is a design pattern where the flow of the program is determined by events. In this architecture, the system is built around the concept of events that trigger specific actions or functions, often referred to as event handlers.

Software Development

08 Jan, 2025

Top Node.js Interview Questions and Answers (2025)

In Node.js, `require` is a built-in function used to import modules, JSON files, or local files into a Node.js application. It is part of the CommonJS module system, which allows you to organize code into reusable modules.

Software Development

08 Jan, 2025

Top Node.js Interview Questions and Answers

Both `process.nextTick()` and `setImmediate()` are used to schedule callbacks to be executed asynchronously in Node.js, but they differ in when and how they are executed within the event loop. Here's a breakdown of the differences:

Software Development

08 Jan, 2025

Top Node.js Interview Questions for 2025

Node.js has gained widespread popularity for building web servers due to its unique features and advantages, particularly for handling I/O-heavy applications and concurrent requests. Below are some key advantages of using Node.js for building web servers:

Software Development

08 Jan, 2025

Top Node.js Interview Questions(2025)

`async/await` in Node.js is syntactic sugar built on top of Promises that allows you to write asynchronous code in a more readable, synchronous-like manner. It simplifies the process of working with Promises and makes asynchronous code easier to manage and understand.

Software Development

08 Jan, 2025

Top Node.js Interview Questions

In Node.js, callbacks are functions that are passed as arguments to other functions and are executed after the completion of an asynchronous operation. The callback function is called (or invoked) when the operation finishes, allowing Node.js to handle tasks asynchronously without blocking the main thread. This is an essential concept in Node.js, which is designed around asynchronous I/O to maintain non-blocking performance.

26 Dec, 2024

Most Frequently asked node.js Interview Questions (2024)

Node.js is a powerful, open-source, cross-platform runtime environment that allows developers to run JavaScript code outside of a web browser. It is built on the V8 JavaScript engine (the same engine used by Google Chrome) and is primarily used for building server-side applications. Node.js enables JavaScript to be used for back-end development, making it possible to use a single programming language (JavaScript) for both client-side and server-side code.