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 […]
Related Topics Node JS Question 1 Explain what Node.js is and its purpose? Answer Node.js is an open-source, cross-platform, server-side runtime environment built on the Google V8 JavaScript engine. It allows developers to run JavaScript on the server side, providing a powerful and efficient way to build scalable, real-time applications. The primary purpose of Node.js
Related Topics Data Structure Question 31 What is a Dijkstra’s algorithm and how is it used to find the shortest path in a graph? Answer Dijkstra’s algorithm is a well-known algorithm for finding the shortest path in a graph from a source vertex to all other vertices. It is a greedy algorithm that works by
Related Topics HTML Question 7 What is the purpose of the DOCTYPE declaration in an HTML document? Answer The DOCTYPE declaration in an HTML document tells the web browser which version of HTML the document is written in. It is placed at the very beginning of an HTML document, before the <html> tag. The DOCTYPE
Related Topics HTML Question 1 What is HTML and what is it used for? Answer HTML stands for Hypertext Markup Language. It is a markup language used for creating web pages and other information that can be displayed in a web browser. HTML uses a set of tags and attributes to define the structure and
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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