Related Topics Node JS Question 73 What is a RESTful API and what are the key principles it follows? Answer A RESTful API (Representational State Transfer) is a set of guidelines and principles for creating web services that are scalable, flexible, and easily maintainable. It is an architectural style that defines a set of constraints […]
Related Topics Node JS Question 21 What is a module in Node.js? Answer In Node.js, a module is a reusable piece of code that encapsulates related functionality and can be imported and used in other parts of an application. Modules in Node.js are designed to help developers organize and modularize their code, making it easier
Related Topics Node JS Question 16 How does the Node.js event-driven programming model handle errors and exceptions? Answer In the Node.js event-driven programming model, errors and exceptions are handled using a combination of event listeners and error handling functions. When an error occurs in a Node.js application, it emits an “error” event, which can be
Related Topics Node JS Question 11 Explain the single-threaded event loop model in Node.js and how it enables efficient server-side programming? Answer Sure, the single-threaded event loop model is a core concept in Node.js and enables efficient server-side programming by allowing Node.js to handle large numbers of concurrent requests with a low overhead. In a
Related Topics Node JS Question 6 How does Node.js handle I/O operations and what advantages does it provide compared to traditional servers? Answer Node.js handles I/O operations using an event-driven, non-blocking I/O model. In traditional servers, when a request comes in that requires I/O, such as reading data from a file or a database, the
1. What is Ajax? Ajax is abbreviated as Asynchronous Javascript and XML. It is new technique used to create better, faster and more interactive web systems or applications. Ajax uses asynchronous data transfer between the Browser and the web server. This technique is used to make internet faster and user friendly. It is not a
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1. What is MongoDB? MongoDB is a document-oriented NoSQL database used for high volume data storage. Instead of using tables and rows as in the traditional relational databases, MongoDB makes use of collections and documents. Documents consist of key-value pairs which are the basic unit of data in MongoDB. Collections contain sets of documents and
1. What is jQuery? jQuery is a feature-rich JavaScript library that makes HTML document traversal and manipulation, event handling, animation, and Ajax much simpler and faster. jQuery has an easy-to-use API that works across many browsers. UI related functions can be written with minimal lines of code using jQuery. 2. What are the core features
1. What is Angular Framework? Angular is a TypeScript-based open-source front-end platform that makes it easy to build applications with in web/mobile/desktop. The major features of this framework such as declarative templates, dependency injection, end to end tooling, and many more other features are used to ease the development. 2. What are the key components
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1. What is JSX? JSX is a XML-like syntax extension to ECMAScript (the acronym stands for JavaScript XML). Basically it just provides syntactic sugar for the React.createElement() function, giving us expressiveness of JavaScript along with HTML like template syntax. In the example below text inside <h1> tag is returned as JavaScript function to the render
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