Explain the role of V8 engine in NodeJS. - GeeksforGeeks (2024)

Explain V8 engine in Node.js

What is a V8 Engine? V8 is a C++-based open-source JavaScript engine developed by Google. It was originally designed for Google Chrome and Chromium-based browsers (such as Brave) in 2008, but it was later utilized to create Node.js for server-side coding. In reality, JSON-based No-SQL databases like Couchbase and the widely used MongoDB use the V8

Explain the concept of middleware in NodeJS

Middleware in NodeJS refers to a software design pattern where functions are invoked sequentially in a pipeline to handle requests and responses in web applications. It acts as an intermediary layer between the client and the server, allowing for modularization of request processing logic and enabling cross-cutting concerns such as authentication,

Difference between Web Role and Worker Role in Node.js

Web Role: Web Role is a Cloud Service role in Azure that is customized to run web-based applications developed by programming languages supported by IIIS (Internet Information Services) like we have Node JS. Worker Role: A worker role is any role in Azure that is customized to run applications in the background service processes along with Web Role

Explain the role of callback function in AJAX

AJAX (Asynchronous Javascript and XML) is used to create web applications asynchronous. It uses XMLHttpRequest to transport data to and from the server. AJAX always works on Request and Response means AJAX will Request anything from the server and the server will give the Response back to AJAX. We have a built-in object of Javascript known as "XMLH

Explain the role of middleware in authentication and authorization in Redux.

Middleware is a major element in the management of authentication and authorization in Redux applications. It acts as a barrier between actions and reducers, enabling users to intercept actions and enforce security measures. This ensures that only authorized users with appropriate permissions can access certain features or perform specific actions

Explain the role of the root injector in Angular.

Angular's dependency injection enables modular and reusable components across applications. At the core of dependency injection lies the root injector, a powerful mechanism responsible for managing dependencies and providing instances of services, components, directives, and more throughout the application. In this article, we'll see more about the

Explain the Role of @Component Decorator in Angular

Components are the fundamental building blocks that create the different parts of our Angular application that we see and interact with. They combine the appearance and functionality of a specific part of the application and can be used in different places..A decorator is a TypeScript feature that allows modifying the behaviour of a class or its me

What happens inside JavaScript Engine ?

JavaScript is a multi-paradigm prototype-based language, which uses JavaScript Engine such as Chrome's V8 engine Firefox SpiderMonkey engine and etc. They convert the high level code into machine-readable code which lets computer to perform some specific tasks. We will understand this using an image. Google chrome's JavaScript V8 engine: Firstly, r

Nashorn JavaScript Engine in Java with Examples

Nashorn: Nashorn is a JavaScript engine which is introduced in JDK 8. With the help of Nashorn, we can execute JavaScript code at Java Virtual Machine. Nashorn is introduced in JDK 8 to replace existing JavaScript engine i.e. Rhino. Nashorn is far better than Rhino in term of performance. The uses of invoking dynamic feature, conversion of JavaScri

How to Setup View Engine in Node.js ?

View engines are useful for rendering web pages. There are many view engines available in the market like Mustache, Handlebars, EJS, etc but the most popular among them is EJS which simply stands for Embedded JavaScript. It is a simple templating language/engine that lets its user generate HTML with plain javascript. Installation of ejs module: You

How to Setup Handlebars View Engine in Node.js ?

Handlebars is a template engine that is widely used and easy to use. The pages contain .hbs extension and there are many other template engines in the market like EJS, Mustache, etc. Installation of hbs module: You can visit the link Install hbs module. You can install this package by using this command. npm install hbs After installing hbs module,

Express.js app.engine() Function

The app.engine() function is used to register the given template engine callback as ext. By default the Express itself will require() the engine based on the file extension. Syntax: app.engine(ext, callback) Parameters: The ext parameter is the extension type like ejs, hbs, etc and callback is the function passed as a parameter. Return Value: It re

Tensorflow.js tf.engine() Function

Tensorflow.js is an open-source library that is developed by Google for running machine learning models as well as deep learning neural networks in the browser or node environment. The .engine() function is used to return the global engine which saves the path of every single tensor as well as backends. Syntax: tf.engine() Parameters: This method d

How to render a list without render a engine in JavaScript ?

Javascript render engines allow developers to render raw Javascript data into a website, in an opinionated way. Examples of these are React, Vue, Ember.js, and many others. However, these frameworks are not required to render Javascript data into a website. In this article, we will take a list of strings, and render them into a simple website, usin

How to add pug engine in Express.js ?

Express is a small framework that sits on top of Node.js web server functionality to simplify its APIs and add helpful new features. It makes it easier to organize your application’s functionality with middleware and routing; it adds helpful utilities to Node.js’s HTTP objects; it facilitates the rendering of dynamic HTTP objects. In this article,

React MUI Styled Engine

The Material UI library provides a way to style applications using material design principles. The "Styled Engine" refers to the way that Material UI allows you to customize the styles of your components using a CSS-in-JS approach, which involves writing JavaScript objects that represent CSS styles. The Material UI Styled Engine is built on top of

How do Search Engine deal with AngularJS Application ?

AngularJS, a widely used JavaScript framework, has transformed web development by enabling the creation of dynamic and interactive single-page applications (SPAs). However, the architecture of SPAs, which relies heavily on client-side rendering, poses challenges for search engines. In this article, we'll delve into the intricacies of how search eng

How to Configure Google Compute Engine to use HTTPS for Node.js Server ?

In this article, we will have a look at the configuration of HTTPS for the Node.js server deployed in Google Compute Engine. We will see how we can set up a Node.js server with reverse proxy with an NGINX server having HTTPS configuration. We will use GCE (Google Compute Engine) Virtual machine for setting up our application. NGINX is a free web s

Difference between Search Engine and Web Browser

Search Engine: A search engine is a kind of website through which users can search the content available on the Internet. For this purpose, users enter the desired keywords into the search field. Then the search engine looks through its index for relevant web pages and displays them in the form of a list. The Internet is a huge source of informatio

How to use underscore.js as a template engine ?

While writing layouts for web pages, it is often the case that we require certain elements of the page to have dynamic values. For such scenarios, we use templates. Templates enable us to embed logical segments inside static HTML code, which makes the page dynamic based on the values passed in the template. To render templates, we require a templat

V8 JavaScript Engine

The V8 JavaScript engine, developed by Google, is a high-performance open-source engine designed to execute JavaScript code efficiently. Initially created for the Google Chrome web browser, V8 has become a key component in various applications and platforms, showcasing its versatility. V8 employs a Just-In-Time (JIT) compilation technique, translat

What is the different types of Case Statement in Pug Template Engine ?

Pug is a template engine that works with JavaScript libraries and frameworks. It simplifies the process of writing HTML by reducing traditional HTML syntax. Among all of this features it also provide support for CASE statement to handle different scenario. In this article, we will learn about CASE statement, it's syntax with example. Case Statement

How to include CSS files in EJS View Engine?

Including CSS files is important for styling web pages in web development with Node.js, Express, and EJS. In this article, we will explore the process of including CSS in such projects to enhance the visual appeal and user experience. Approach to include CSS file in EJS:We're building a Node.js web application using Express and EJS.Our project incl

Pug View Engine Introduction

Pug is a template engine that works with JavaScript libraries and frameworks. It simplifies the process of writing HTML by reducing traditional HTML syntax. It uses indentation to represent HTML structure. By using Pug you can reuse the HTML code. In this article, we will learn about how to use pug and its syntax examples. Table of Content What Is

EJS Template Engine for Express

EJS stands for Embedded JavaScript. It is a template engine designed to be used with server-side JavaScript environments like NodeJS and It is used to generate dynamic content in a web page. It simplifies the generation of HTML by allowing you to embed JavaScript code directly in HTML. In this article, we will learn how to use EJS with its syntax a

Filters in Pug View Engine

Pug is a template engine that can be used to create HTML documents. It's used to write templates that are then compiled into functions that take in data and render HTML documents. We will discuss the different types of Filters in Pug Template and their Approaches: Table of Content 1. :markdown:2. :javascript:3. :css:4. :coffee:5. :sass:6. :less:Inl

How to create Lists in Pug View Engine ?

Pug is a template engine for NodeJS and browsers to render dynamic reusable content. At compile time, the template engine compiles our Pug template code to HTML. Pug has many powerful features like conditions, loops, includes, and mixins using which we can render HTML code based on user input or reference data. Pug also supports JavaScript natively

How to create Tables in Pug View Engine ?

Pug is a template engine for NodeJS and browsers, enabling dynamic content rendering. It compiles templates to HTML, supports JavaScript expressions for formatting, and facilitates the reuse of static pages with dynamic data. Its indentation-based syntax simplifies tag specification, enhancing readability. Tables in Pug:A table is an arrangement of

How to use array of objects in EJS Template Engine ?

Arrays of objects are collections of JavaScript objects stored within an array. Each object within the array can contain multiple key-value pairs, making them versatile for organizing various types of data. For example, you might have an array of objects representing users, products, or posts in a social media application. Here's an example of an a

Pug View Engine Installation

Pug, once known as Jade, makes writing HTML codes e­asy for NodeJS and web browsers. It's cle­ar syntax and handy features spee­d up web work and keep things simple­. This quick guide will go over what you nee­d to use Pug, how to install it, and what it does, and will give you cle­ar steps along with examples to cre­ate your first application usin