The document provides an introduction to Node.js, including:
- A brief history of Node.js and its development from 2009 to the present.
- An overview of what Node.js is, combining JavaScript, an event loop, and low-level I/O for building web servers and networking tools.
- A discussion of use cases for Node.js, noting it is well suited for JSON APIs, single page apps, streaming data, and soft real-time applications but not CPU intensive or simple CRUD apps.
Node.js is an open source JavaScript runtime environment for developing server-side applications. It allows JavaScript to be used for non-browser programs like web servers. Node.js uses asynchronous, event-driven programming and non-blocking I/O calls which makes it lightweight and efficient for data-intensive real-time applications. It runs the V8 JavaScript engine and can generate dynamic page content, work with files and databases, and perform tasks like adding/modifying data. The document then discusses features of Node.js like asynchronous programming, speed, scalability, and licensing, as well as its advantages and disadvantages compared to traditional web servers.
Node.js is gaining significant interest for building scalable web applications. Several large companies like LinkedIn, eBay, and Walmart are using Node.js in production for its performance and scalability benefits when handling input/output bound workloads. Node.js allows non-blocking event-driven programming which helps simplify building applications that interact with services, databases, and handle many concurrent connections using little memory. Its large ecosystem of open-source modules also helps speed up development.
Node.js is a server-side JavaScript environment that uses an asynchronous event-driven model. Here you will find 8 best time-tested Node.js file system tools, which are amply used by Node.js developers. You’ve come to the right place if you are going to streamline routine tasks related to a file system.
Node.js is an asynchronous event-driven JavaScript runtime that uses non-blocking I/O to build scalable network applications. It allows for the creation of web servers and networking tools using a event-driven, non-blocking I/O model rather than the traditional threaded model. Node.js is popular because it uses JavaScript and allows code reuse on both the server-side and client-side, offers high performance and scalability for real-time applications, and has a large passionate community supporting its use.
This document provides an introduction and overview of Node.js. It discusses that Node.js is a JavaScript runtime environment that uses Google Chrome's V8 engine, allowing it to be very performant. It provides a brief history of Node.js and describes how Node.js handles requests asynchronously in a non-blocking way. The document also outlines some common uses of Node.js, describes different module types, and provides an example of creating an HTTP server. It introduces NPM for installing third-party packages and modules and concludes by mentioning Express.js as a popular web framework.
Node.js is an open-source JavaScript runtime environment for developing server-side web applications. It allows JavaScript to be used on the server-side for networking and server-side scripting. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, suitable for data-intensive real-time applications that run across distributed devices. Some key features include using JavaScript for server-side development, being event-driven and non-blocking to handle multiple concurrent connections without blocking the event loop, and using Google's V8 JavaScript engine for speed and performance.
Node.js is an open source JavaScript runtime environment for developing server-side applications. It allows JavaScript to be used for non-browser programs like web servers. Node.js uses asynchronous, event-driven programming and non-blocking I/O calls which makes it lightweight and efficient for data-intensive real-time applications. It runs the V8 JavaScript engine and can generate dynamic page content, work with files and databases, and perform tasks like adding/modifying data. The document then discusses features of Node.js like asynchronous programming, speed, scalability, and licensing, as well as its advantages and disadvantages compared to traditional web servers.
Node.js is gaining significant interest for building scalable web applications. Several large companies like LinkedIn, eBay, and Walmart are using Node.js in production for its performance and scalability benefits when handling input/output bound workloads. Node.js allows non-blocking event-driven programming which helps simplify building applications that interact with services, databases, and handle many concurrent connections using little memory. Its large ecosystem of open-source modules also helps speed up development.
Node.js is a server-side JavaScript environment that uses an asynchronous event-driven model. Here you will find 8 best time-tested Node.js file system tools, which are amply used by Node.js developers. You’ve come to the right place if you are going to streamline routine tasks related to a file system.
Node.js is an asynchronous event-driven JavaScript runtime that uses non-blocking I/O to build scalable network applications. It allows for the creation of web servers and networking tools using a event-driven, non-blocking I/O model rather than the traditional threaded model. Node.js is popular because it uses JavaScript and allows code reuse on both the server-side and client-side, offers high performance and scalability for real-time applications, and has a large passionate community supporting its use.
This document provides an introduction and overview of Node.js. It discusses that Node.js is a JavaScript runtime environment that uses Google Chrome's V8 engine, allowing it to be very performant. It provides a brief history of Node.js and describes how Node.js handles requests asynchronously in a non-blocking way. The document also outlines some common uses of Node.js, describes different module types, and provides an example of creating an HTTP server. It introduces NPM for installing third-party packages and modules and concludes by mentioning Express.js as a popular web framework.
Node.js is an open-source JavaScript runtime environment for developing server-side web applications. It allows JavaScript to be used on the server-side for networking and server-side scripting. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, suitable for data-intensive real-time applications that run across distributed devices. Some key features include using JavaScript for server-side development, being event-driven and non-blocking to handle multiple concurrent connections without blocking the event loop, and using Google's V8 JavaScript engine for speed and performance.
This document provides an introduction to Node.js, including what it is, why it is useful, and how it works. Node.js is a platform that allows developers to build fast and scalable network applications using JavaScript. It uses an event-driven, non-blocking model that makes it lightweight and efficient for data-intensive real-time applications. Node.js shines for building real-time web apps with push technology over websockets, allowing two-way communication between client and server.
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine that uses an event-driven, non-blocking I/O model. It allows creation of web servers and networking tools using JavaScript. The npm package ecosystem is the largest ecosystem of open source libraries in the world and is the default package manager for Node.js. Node.js has asynchronous, non-blocking APIs and uses an event loop model that makes it lightweight and efficient for building scalable web servers and applications.
This document provides an introduction to Node.js web development. It discusses Node.js basics including its asynchronous, non-blocking architecture. It also covers building a simple web app with Express, MongoDB, and Jade. Tools for bundling assets like Grunt and unit testing with Mocha are described. Sample code demonstrates basic routing, database queries, templating, and unit tests. Contact information and GitHub repos are provided to learn more.
Docker allows developers to package applications and dependencies into standardized units called containers. This ensures applications will run the same regardless of environment. Docker addresses issues developers face around long development cycles, bugs between environments, and inconsistent environments. It provides lightweight virtualization that builds, ships and runs distributed applications. Docker improves the software development process by allowing consistent environments for development, testing and production which speeds delivery and reduces bugs.
NodeJS is an open source, cross platform run time environment for server side and networking application. NodeJS is popular in development because front & back end side both uses JavaScript Code.
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows JavaScript to be run on the server-side. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, especially for data-intensive real-time applications that run across distributed devices. It has a large and active community that supports it with packages for building all sorts of server-side applications and web services.
An Introduction to Node.js Development with Windows AzureTroy Miles
Node.js has taken off in popularity. Find out why major internet companies like Yammer, CouchOne, DocumentCloud, and LinkedIn are using Node to power their servers. And why Microsoft added support for it to Azure. In this session we will build a simple yet functional web server using Node, enhance it using plugins known as Modules, and hopefully explain why Node is such a powerful new web server paradigm.
This document provides an overview of Node.js, how to install it, and some common tools used with Node.js projects. It discusses Node.js fundamentals like non-blocking I/O, and covers popular Node.js modules like Express, Socket.io, and PM2. Installation instructions are provided for Node.js, along with brief descriptions of using NPM, initializing projects, making HTTP requests, scheduling tasks, and deploying Node.js apps.
This document provides an overview of Bower, a package manager for the web. It discusses the requirements to use Bower, how to install and configure it, and how to run Bower to install dependencies. Bower is used to manage front-end components and their dependencies. It requires Node.js and NPM to be installed first. Then Bower can be installed globally and configured via a bower.json file to specify packages and dependencies. Running Bower will install all dependencies to the default or specified directory. The document also briefly explains how Bower can be used with XPages projects to manage front-end libraries.
The document discusses Node.js, including what it is, its benefits, use cases, and readiness for enterprise use. Node.js is an event-driven, non-blocking I/O model that is well-suited for building scalable web applications with real-time features but not CPU-intensive batch processes. It promotes fast development with smaller codebases and is widely adopted by enterprises. The document also covers Node.js application architecture, database support, development tools, deployment practices, and strategies for adoption.
The document provides an overview of Node.js, a JavaScript runtime environment for building scalable network applications. Some key points covered include:
- Node.js is built on Google's V8 JavaScript engine and is event-driven and non-blocking.
- It is well-suited for data-intensive real-time applications due to its lightweight and efficient nature.
- Node.js differs from other scripting languages by being non-blocking, single-threaded, and having an event-based approach built-in.
The document discusses JavaScript application development for both server-side and client-side environments. It covers dependency management with tools like Node.js Package Manager, common patterns like MVC with Spine.js, and Windows 8 development with WinJS. Code examples demonstrate using Node.js, Railway.js, Spine.js, and WinJS for asynchronous operations, navigation, and fragments. The talk encourages leveraging common JavaScript tools and patterns for building cross-platform applications.
What is Node.js | Node.js Tutorial for Beginners | Node.js Modules | Node.js ...Edureka!
This Edureka "What is Node.js" tutorial will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi – Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
Node.js is a JavaScript runtime built on Chrome's V8 engine that uses an event-driven, non-blocking I/O model. It includes a package ecosystem called npm that is the largest open source library ecosystem. Node.js executes JavaScript using Google's V8 engine written in C++, which compiles JavaScript to machine code using two compilers. Node.js is commonly used for real-time applications due to its asynchronous nature and uses an event loop model.
Node.js Kick Start was a first community meet-up in Chennai about Node.js. Node.js is a server-side JavaScript application framework that uses an event-driven, non-blocking I/O model. It was created in 2009 and its governance is now overseen by the Node.js Foundation. The document discusses Node.js' history and key features like its event-driven and asynchronous nature, and how writing asynchronous code differs from traditional synchronous approaches. It also introduces NPM, the Node.js package manager.
The document discusses JavaScript application development for both server-side and client-side applications. It covers dependency management with Node.js Package Manager, using MVC frameworks like Railway.js and Spine.js, testing with tools like QUnit and Tobi.js, and developing Windows 8 Metro apps with WinJS for navigation and fragments. Common patterns like namespaces, modules, and promises are also discussed.
This is a presentation I prepared for a local meetup. The audience is a mix of web designers and developers who have a wide range of development experience.
Lessons in Open Source from the MongooseJS ODMValeri Karpov
Valeri Karpov discusses his experience with the Mongoose ODM project for Node.js. He got involved after discovering Mongoose helped reduce his code, and later became the main maintainer. He provides an overview of how Mongoose works through schema validation, syntactic sugar for updates, and hooks/middleware. Recent additions include query middleware and promises support. Lessons learned include being responsive to issues and maintaining a clear vision for an open source project.
This document provides an introduction to Node.js web development. It discusses Node.js basics including its asynchronous, non-blocking I/O model. It also covers building a basic web app with Express.js, MongoDB, and the Jade template engine. The document demonstrates setting up a development environment, routing, schemas, and querying a MongoDB database. It also discusses bundling assets with Grunt and unit testing with Mocha. Sample code is provided on GitHub for reference.
An overview and start with Node.js.
Node.js Timeline
Why Node.js
Synchronous vs. Asynchronous
Advantages
Handles A File Request
Node.js File
Practical Task
IDE
Download and Install
Hello World
Demo Tasks
Create A Module
Books References
Web References
This document provides an introduction to Node.js, including what it is, why it is useful, and how it works. Node.js is a platform that allows developers to build fast and scalable network applications using JavaScript. It uses an event-driven, non-blocking model that makes it lightweight and efficient for data-intensive real-time applications. Node.js shines for building real-time web apps with push technology over websockets, allowing two-way communication between client and server.
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine that uses an event-driven, non-blocking I/O model. It allows creation of web servers and networking tools using JavaScript. The npm package ecosystem is the largest ecosystem of open source libraries in the world and is the default package manager for Node.js. Node.js has asynchronous, non-blocking APIs and uses an event loop model that makes it lightweight and efficient for building scalable web servers and applications.
This document provides an introduction to Node.js web development. It discusses Node.js basics including its asynchronous, non-blocking architecture. It also covers building a simple web app with Express, MongoDB, and Jade. Tools for bundling assets like Grunt and unit testing with Mocha are described. Sample code demonstrates basic routing, database queries, templating, and unit tests. Contact information and GitHub repos are provided to learn more.
Docker allows developers to package applications and dependencies into standardized units called containers. This ensures applications will run the same regardless of environment. Docker addresses issues developers face around long development cycles, bugs between environments, and inconsistent environments. It provides lightweight virtualization that builds, ships and runs distributed applications. Docker improves the software development process by allowing consistent environments for development, testing and production which speeds delivery and reduces bugs.
NodeJS is an open source, cross platform run time environment for server side and networking application. NodeJS is popular in development because front & back end side both uses JavaScript Code.
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows JavaScript to be run on the server-side. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, especially for data-intensive real-time applications that run across distributed devices. It has a large and active community that supports it with packages for building all sorts of server-side applications and web services.
An Introduction to Node.js Development with Windows AzureTroy Miles
Node.js has taken off in popularity. Find out why major internet companies like Yammer, CouchOne, DocumentCloud, and LinkedIn are using Node to power their servers. And why Microsoft added support for it to Azure. In this session we will build a simple yet functional web server using Node, enhance it using plugins known as Modules, and hopefully explain why Node is such a powerful new web server paradigm.
This document provides an overview of Node.js, how to install it, and some common tools used with Node.js projects. It discusses Node.js fundamentals like non-blocking I/O, and covers popular Node.js modules like Express, Socket.io, and PM2. Installation instructions are provided for Node.js, along with brief descriptions of using NPM, initializing projects, making HTTP requests, scheduling tasks, and deploying Node.js apps.
This document provides an overview of Bower, a package manager for the web. It discusses the requirements to use Bower, how to install and configure it, and how to run Bower to install dependencies. Bower is used to manage front-end components and their dependencies. It requires Node.js and NPM to be installed first. Then Bower can be installed globally and configured via a bower.json file to specify packages and dependencies. Running Bower will install all dependencies to the default or specified directory. The document also briefly explains how Bower can be used with XPages projects to manage front-end libraries.
The document discusses Node.js, including what it is, its benefits, use cases, and readiness for enterprise use. Node.js is an event-driven, non-blocking I/O model that is well-suited for building scalable web applications with real-time features but not CPU-intensive batch processes. It promotes fast development with smaller codebases and is widely adopted by enterprises. The document also covers Node.js application architecture, database support, development tools, deployment practices, and strategies for adoption.
The document provides an overview of Node.js, a JavaScript runtime environment for building scalable network applications. Some key points covered include:
- Node.js is built on Google's V8 JavaScript engine and is event-driven and non-blocking.
- It is well-suited for data-intensive real-time applications due to its lightweight and efficient nature.
- Node.js differs from other scripting languages by being non-blocking, single-threaded, and having an event-based approach built-in.
The document discusses JavaScript application development for both server-side and client-side environments. It covers dependency management with tools like Node.js Package Manager, common patterns like MVC with Spine.js, and Windows 8 development with WinJS. Code examples demonstrate using Node.js, Railway.js, Spine.js, and WinJS for asynchronous operations, navigation, and fragments. The talk encourages leveraging common JavaScript tools and patterns for building cross-platform applications.
What is Node.js | Node.js Tutorial for Beginners | Node.js Modules | Node.js ...Edureka!
This Edureka "What is Node.js" tutorial will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi – Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
Node.js is a JavaScript runtime built on Chrome's V8 engine that uses an event-driven, non-blocking I/O model. It includes a package ecosystem called npm that is the largest open source library ecosystem. Node.js executes JavaScript using Google's V8 engine written in C++, which compiles JavaScript to machine code using two compilers. Node.js is commonly used for real-time applications due to its asynchronous nature and uses an event loop model.
Node.js Kick Start was a first community meet-up in Chennai about Node.js. Node.js is a server-side JavaScript application framework that uses an event-driven, non-blocking I/O model. It was created in 2009 and its governance is now overseen by the Node.js Foundation. The document discusses Node.js' history and key features like its event-driven and asynchronous nature, and how writing asynchronous code differs from traditional synchronous approaches. It also introduces NPM, the Node.js package manager.
The document discusses JavaScript application development for both server-side and client-side applications. It covers dependency management with Node.js Package Manager, using MVC frameworks like Railway.js and Spine.js, testing with tools like QUnit and Tobi.js, and developing Windows 8 Metro apps with WinJS for navigation and fragments. Common patterns like namespaces, modules, and promises are also discussed.
This is a presentation I prepared for a local meetup. The audience is a mix of web designers and developers who have a wide range of development experience.
Lessons in Open Source from the MongooseJS ODMValeri Karpov
Valeri Karpov discusses his experience with the Mongoose ODM project for Node.js. He got involved after discovering Mongoose helped reduce his code, and later became the main maintainer. He provides an overview of how Mongoose works through schema validation, syntactic sugar for updates, and hooks/middleware. Recent additions include query middleware and promises support. Lessons learned include being responsive to issues and maintaining a clear vision for an open source project.
This document provides an introduction to Node.js web development. It discusses Node.js basics including its asynchronous, non-blocking I/O model. It also covers building a basic web app with Express.js, MongoDB, and the Jade template engine. The document demonstrates setting up a development environment, routing, schemas, and querying a MongoDB database. It also discusses bundling assets with Grunt and unit testing with Mocha. Sample code is provided on GitHub for reference.
An overview and start with Node.js.
Node.js Timeline
Why Node.js
Synchronous vs. Asynchronous
Advantages
Handles A File Request
Node.js File
Practical Task
IDE
Download and Install
Hello World
Demo Tasks
Create A Module
Books References
Web References
A brief overview of Node.js, the history of the project, a few demos, and where node will be heading in the near future.
Presentation demo code can be found here: https://github.com/andrewlively/Node.js-Presentation-Examples
This was presented at TechOlympics 2016.
Node.js is an exciting platform that has been increasing in popularity for the past few years. It offers a server side JavaScript programming model ideal for building highly scalable and performant network applications whether on premise or in the cloud. In this talk we will take a look at various options for building and deploying Node applications on Microsoft Azure. This session is how to useAzure SQL Databse and Azure Storage with Node.js
CrossWorlds: Unleash the Power of Domino for Connections Development LetsConnect
Until now, the only way to surface your Customers’ Domino data in IBM Connections has been via XPages. But over the last year IBM Domino Developers, the Domino landscape and the Java web development landscape have undergone a significant change. See how to use the popular Vaadin framework to create a standard web application on IBM Websphere Liberty using IBM Domino as either a NoSQL or Graph database.
Building node.js applications on windows azureAidan Casey
This document discusses building Node.js applications on Windows Azure. It provides an introduction to Node.js and its asynchronous event-driven model. It demonstrates how to build and deploy a simple chat room application using the Windows Azure SDK for Node.js. It also discusses when Node.js would be a good fit for an application.
An absolute beginners guide to node.js . Done for a presentation at college. The presentation contains data from various sources ,sources are noted at the end slide. please inform me any mistakes ,since at that time i was in a bit of hurry :)
Social Connections 2015 CrossWorlds and DominoPaul Withers
This document discusses CrossWorlds, which allows developing generic web applications using the IBM Domino application server. CrossWorlds is a feature for IBM Websphere Liberty Profile that makes Liberty act like a Domino server to applications. It allows accessing Domino data and services via the OpenNTF Domino API from standard web applications. CrossWorlds provides advantages like Domino's security and data storage along with Liberty's speed and tooling. The OpenNTF Domino API also provides more flexible session handling and data access than traditional XPages development.
Building web apps with node.js, socket.io, knockout.js and zombie.js - Codemo...Ivan Loire
Node.js is a JavaScript runtime built on Chrome's V8 engine that is lightweight and efficient for building fast web applications. It allows single-threaded, event-driven programming that is ideal for I/O intensive applications like web servers. The document discusses why Node.js is exciting for developers, how it works asynchronously using callbacks, and how frameworks like Express.js help build full-featured web applications with Node.js.
Quick introduction about Node.js, what is it? What is Node not?
What is V8 engine?
How to Install Node.js
github: https://github.com/elbassel/MEAN-Training.git
As per the trends captured in the job market from the year and the technology popularity , the usage of node.js is set to take off this year to a whole new level. This blog is an insight into understanding node.js. Touch points from ground up covering the basics of the platform to advanced use cases will be covered. The key features across the different facets around building enterprise application with node.js will be covered. Interesting use cases will be discussed on how this powerful technology is being used across the globe. The targeted audience can range from intermediate to advanced developers who would like to learn and employ the technology, architects to use it effectively for solutioning and sales team who can leverage the advantages of the technology in proposing quicker time to market like never before.
“Node's goal is to provide an easy way to build scalable Network programs”
Asynchronous i/o framework
Core in c++ on top of v8
Rest of it in javascript
Swiss army knife for network Related stuffs
Can handle thousands of Concurrent connections with Minimal overhead (cpu/memory) on a single process
It’s NOT a web framework, and it’s also NOT a language
• Created by Ryan Dahl in 2009
• Development && maintenance sponsored by Joyent
• License MIT
• Last release : 0.10.31
• Based on Google V8 Engine
• +99 000 packages
This document provides an overview of a lunch and learn session about Node.js. It will discuss why Node.js may not be suitable for some tasks, describe key Node.js concepts like the event loop and asynchronous programming, and show examples of how Node.js has already been used within MDL frameworks like Seneca and groki-server. The session aims to explain Node.js keywords and what they mean, as well as what to expect, including an overview of the event loop and how to take advantage of multiple cores.
Node.js is an introduction to the Node.js platform for developing server-side JavaScript applications. It discusses Node.js background and architecture, JavaScript basics, installing Node.js and setting up a development environment. It then demonstrates building a simple web application using Express and connecting it to MongoDB. The document provides an overview of Node.js advantages like asynchronous non-blocking I/O and event-driven model that make it well-suited for real-time applications and APIs.
Node.js is one of the most popular runtimes for cloud and cognitive applications. Come learn about this runtime, the community and how IBM is actively working in the community to support IBM platforms and to address the areas/requirements important to enterprise customers. We'll provide:
1) an introduction to the Node.js runtime, where it fits versus other runtimes like Java,
2) key features/benefits of Node.js,
3) an introduction to the community, its Working Groups and other aspects of how it works to get things done.
Some come and learn about this rapidly growing runtime so that you can understand if its a good fit for your applications and the kinds of benefits you may achieve by using it.
This document summarizes a talk given by Alexander Zayats on building an open source project for the Open edX platform. It discusses setting up continuous integration with Travis CI, using Code Climate and CodeCov to enforce code quality and test coverage. The project aimed to add video playback capabilities to Open edX, including support for multiple platforms like YouTube, HTML5, and 3PlayMedia. Remote team collaboration was key, and lessons were learned around code reviews, style enforcement, and demos that could have saved significant time. Questions about weaknesses and risks to delivery were posed at the end.
This document provides an overview of a 1-hour seminar on getting started with Node.js. The objectives are to understand Node.js basics and common modules, create a simple Node.js app, and start learning more in-depth. The agenda covers what Node.js is and how it works, installation, project and module structure, common packages, and hosting a Node.js app with PM2. Key points include Node.js using asynchronous and non-blocking I/O with callbacks, common packages like Express.js and template engines, project structure with package.json, and using PM2 to host Node.js apps.
Node.js is an open source JavaScript runtime built on Chrome's V8 JavaScript engine. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient for data-intensive real-time applications that run across distributed devices. Some key uses of Node.js include building mobile apps, real-time applications like chat rooms, and IOT applications due to its asynchronous nature and ability to handle high volumes of simultaneous connections with low latency.
Measures in SQL (SIGMOD 2024, Santiago, Chile)Julian Hyde
SQL has attained widespread adoption, but Business Intelligence tools still use their own higher level languages based upon a multidimensional paradigm. Composable calculations are what is missing from SQL, and we propose a new kind of column, called a measure, that attaches a calculation to a table. Like regular tables, tables with measures are composable and closed when used in queries.
SQL-with-measures has the power, conciseness and reusability of multidimensional languages but retains SQL semantics. Measure invocations can be expanded in place to simple, clear SQL.
To define the evaluation semantics for measures, we introduce context-sensitive expressions (a way to evaluate multidimensional expressions that is consistent with existing SQL semantics), a concept called evaluation context, and several operations for setting and modifying the evaluation context.
A talk at SIGMOD, June 9–15, 2024, Santiago, Chile
Authors: Julian Hyde (Google) and John Fremlin (Google)
https://doi.org/10.1145/3626246.3653374
Top Benefits of Using Salesforce Healthcare CRM for Patient Management.pdfVALiNTRY360
Salesforce Healthcare CRM, implemented by VALiNTRY360, revolutionizes patient management by enhancing patient engagement, streamlining administrative processes, and improving care coordination. Its advanced analytics, robust security, and seamless integration with telehealth services ensure that healthcare providers can deliver personalized, efficient, and secure patient care. By automating routine tasks and providing actionable insights, Salesforce Healthcare CRM enables healthcare providers to focus on delivering high-quality care, leading to better patient outcomes and higher satisfaction. VALiNTRY360's expertise ensures a tailored solution that meets the unique needs of any healthcare practice, from small clinics to large hospital systems.
For more info visit us https://valintry360.com/solutions/health-life-sciences
Malibou Pitch Deck For Its €3M Seed Roundsjcobrien
French start-up Malibou raised a €3 million Seed Round to develop its payroll and human resources
management platform for VSEs and SMEs. The financing round was led by investors Breega, Y Combinator, and FCVC.
Project Management: The Role of Project Dashboards.pdfKarya Keeper
Project management is a crucial aspect of any organization, ensuring that projects are completed efficiently and effectively. One of the key tools used in project management is the project dashboard, which provides a comprehensive view of project progress and performance. In this article, we will explore the role of project dashboards in project management, highlighting their key features and benefits.
Flutter is a popular open source, cross-platform framework developed by Google. In this webinar we'll explore Flutter and its architecture, delve into the Flutter Embedder and Flutter’s Dart language, discover how to leverage Flutter for embedded device development, learn about Automotive Grade Linux (AGL) and its consortium and understand the rationale behind AGL's choice of Flutter for next-gen IVI systems. Don’t miss this opportunity to discover whether Flutter is right for your project.
UI5con 2024 - Boost Your Development Experience with UI5 Tooling ExtensionsPeter Muessig
The UI5 tooling is the development and build tooling of UI5. It is built in a modular and extensible way so that it can be easily extended by your needs. This session will showcase various tooling extensions which can boost your development experience by far so that you can really work offline, transpile your code in your project to use even newer versions of EcmaScript (than 2022 which is supported right now by the UI5 tooling), consume any npm package of your choice in your project, using different kind of proxies, and even stitching UI5 projects during development together to mimic your target environment.
Mobile App Development Company In Noida | Drona InfotechDrona Infotech
Drona Infotech is a premier mobile app development company in Noida, providing cutting-edge solutions for businesses.
Visit Us For : https://www.dronainfotech.com/mobile-application-development/
The Key to Digital Success_ A Comprehensive Guide to Continuous Testing Integ...kalichargn70th171
In today's business landscape, digital integration is ubiquitous, demanding swift innovation as a necessity rather than a luxury. In a fiercely competitive market with heightened customer expectations, the timely launch of flawless digital products is crucial for both acquisition and retention—any delay risks ceding market share to competitors.
What to do when you have a perfect model for your software but you are constrained by an imperfect business model?
This talk explores the challenges of bringing modelling rigour to the business and strategy levels, and talking to your non-technical counterparts in the process.
14 th Edition of International conference on computer visionShulagnaSarkar2
About the event
14th Edition of International conference on computer vision
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2. 2
AGENDA
• A bit of history
• What is Node.js about?
• Use cases, benefits and disadvantages
• Live Demo
• Useful Links
• Q&A
3. 3
A bit of history
• Invented in 2009 by Ryan Dahl
• Originally published for Linux (2009)
• A package manager was introduced for
Node.js library (npm) in 2011
• In July 2011, a first native Windows
version of Node.js was released.
• In January 2012, Dahl stepped aside.
• In December 2014, Fedor Indutny
started io.js
• 2015 May, 15th
io.js decides to join the
Node Foundation
Ryan Dahl, creator of Node.js
4. 4
What is Node.js about?
• Combined Google’s V8 JavaScript engine, an event-loop and a low-
level I/O API.
• Node.js operates on a single thread, using non-blocking I/O calls.
• Does not support natively scaling with the number of CPU cores.
• Allows the creation of web servers and networking tools.
• Many frameworks: Express.js, Socket.io, etc.
• Package management – NPM.
• Can run on Windows, Unix and Mac OS X.
• Thousands of open-source libraries have been built.
5. 5
Use cases, benefits and disadvantages
Bad Use Cases:
•CPU heavy apps
•Simple CRUD/HTML apps
•NoSQL + Node.js + …
Good Use Cases:
•JSON APIs
•Single page apps
•Steaming data
•Soft Real-time Applications
7. 7
Useful Links
• https://nodejs.org/api/
• https://en.wikipedia.org/wiki/Node.js
• http://vschart.com/compare/node-js/vs/spring-framework
• Many-many tutorials can be found in Internet
• Several books in PDF are available if you’d kindly ask me
Node.js was invented in 2009 by Ryan Dahl, and other developers working at Joyent.[17] Node.js was created and first published for Linux use in 2009. Its development and maintenance was spearheaded by Ryan Dahl and sponsored by Joyent, the firm where Dahl worked.[18]
Dahl was inspired to create Node.js after seeing a file upload progress bar on Flickr. The browser did not know how much of the file had been uploaded and had to query the Web server. Dahl desired an easier way.[19]
It garnered international attention after its debut at the inaugural European JSConf on November 8, 2009.[20][21][22] Dahl presented Node.js, which combined Google's V8 JavaScript engine, an event-loop, and a low-level I/O API.[17] The project received a standing ovation, and has since then experienced significant growth, popularity and adoption.[17]
In 2011, a package manager was introduced for Node.js library, called npm. The package manager allows publishing and sharing of open-source Node.js libraries by the community, and simplifies installation, updating and uninstallation of libraries.[17]
In June 2011, Microsoft partnered with Joyent to implement a native Windows version of Node.js.[23] The first Node.js build to support Windows was released in July.
In January 2012, Dahl stepped aside, promoting coworker and npm creator Isaac Schlueter to manage the project.[24]
In January 2014, Schlueter announced Timothy J. Fontaine would be Node.js's new project lead.[25]
In December 2014, Fedor Indutny started io.js, a fork of Node.js. Due to internal conflict over Joyent's governance, io.js was created as an open governance alternative with a separate technical committee.[
Node.js operates on a single thread, using non-blocking I/O calls, allowing it to support tens of thousands of concurrent connections without incurring the cost of thread context-switching. The design of sharing a single thread between all the requests means it can be used to build highly concurrent applications. The design goal of a Node.js application is that any function performing I/O must use a callback.
A downside of this approach is that Node.js doesn't allow scaling with the number of CPU cores of the machine it is running on without using an additional module such as cluster, StrongLoop Process Manager, or pm2.
Node.js allows the creation of web servers and networking tools, using JavaScript and a collection of "modules" that handle various core functionality.[17][27][20][28][29] Modules handle File system I/O, Networking (HTTP, TCP, UDP, DNS, or TLS/SSL), Binary data (buffers), Cryptography functions, Data streams, and other core functions.[30][17][28] Node's modules have a simple and elegant API, reducing the complexity of writing server applications.[17][28]
Frameworks can be used to accelerate the development of applications, and common frameworks are Express.js, Socket.io and Connect.[17][31] Node.js applications can run on Microsoft Windows, Unix and Mac OS X servers. Node.js applications can alternatively be written with CoffeeScript[32] (a more readable form of JavaScript), Dart or Microsoft TypeScript (strongly typed forms of JavaScript), or any language that can compile to JavaScript.[32]
Node.js is primarily used to build network programs such as web servers, making it similar to PHP and Python.[27] The biggest difference between PHP and Node.js is that PHP is a blocking language (commands execute only after the previous command has completed), while Node.js is a non-blocking language (commands execute in parallel, and use callbacks to signal completion).[27]
Node.js brings event-driven programming to web servers, enabling development of fast web servers in JavaScript.[17] Developers can create highly scalable servers without using threading, by using a simplified model of event-driven programming that uses callbacks to signal the completion of a task.[17] Node.js was created because concurrency is difficult in many server-side programming languages, and often leads to poor performance.[20] Node.js connects the ease of a scripting language (JavaScript) with the power of Unix network programming.[17]
Node.js is built on the Google V8 JavaScript engine, because:[20]
V8 is open-source under the BSD license
V8 is extremely fast
V8 is focused on the web, so is proficient with internet fundamentals like HTTP, DNS, TCP
JavaScript is a well-known language within web development, making it accessible to many web developers
Thousands of open-source libraries have been built for Node.js, and can be downloaded for free from the npm website. Node.js has a developer community centered around two mailing lists and the IRC channel #node.js on freenode. The community gathers at NodeConf, an annual developer conference focused on Node.js.[
Bad Use Cases
CPU heavy apps
Even though I love node.js, there are several use cases where it simply doesn't make sense. The most obvious such case is apps that are very heavy on CPU usage, and very light on actual I/O. So if you're planning to write video encoding software, artificial intelligence or similar CPU hungry software, please do not use node.js. While you can twist and bend things quite a bit, you'll probably get better results with C or C++.
That being said, node.js allows you to easily write C++ addons, so you could certainly use it as a scripting engine on top of your super-secret algorithms.
Simple CRUD / HTML apps
While node.js will eventually be a fun tool for writing all kinds of web applications, you shouldn't expect it to provide you with more benefits than PHP, Ruby or Python at this point. Yes, your app might end up slightly more scalable, but no - your app will not magically get more traffic just because you write it in node.js.
The truth is that while we are starting to see good frameworks for node.js, there is nothing as powerful as Rails, CakePHP or Django on the scene yet. If most of your app is simply rendering HTML based on some database, using node.js will not provide many tangible business benefits yet.
NoSQL + Node.js + Buzzword Bullshit
If the architecture for your next apps reads like the cookbook of NoSQL ingredients, please pause for a second and read this.
Yes, Redis, CouchDB, MongoDB, Riak, Casandra, etc. all look really tempting, but so did that red apple Eve couldn't resist. If you're already taking a technological risk with using node.js, you shouldn't multiply it with more technology you probably don't fully understand yet.
Sure, there are legitimate use cases for choosing a document oriented database. But if you are trying to build a business on top of your software, sticking to conservative database technology (like postgres or mysql) might just outweigh the benefits of satisfying your inner nerd and impressing your friends.
Good Use Cases
JSON APIs
Building light-weight REST / JSON api's is something where node.js really shines. Its non-blocking I/O model combined with JavaScript make it a great choice for wrapping other data sources such as databases or web services and exposing them via a JSON interface.
Single page apps
If you are planning to write an AJAX heavy single page app (think gmail), node.js is a great fit as well. The ability to process many requests / seconds with low response times, as well as sharing things like validation code between the client and server make it a great choice for modern web applications that do lots of processing on the client.
Shelling out to unix tools
With node.js still being young, it's tempting to re-invent all kinds of software for it. However, an even better approach is tapping into the vast universe of existing command line tools. Node's ability to spawn thousands of child processes and treating their outputs as a stream makes it an ideal choice for those seeking to leverage existing software.
Streaming data
Traditional web stacks often treat http requests and responses as atomic events. However, the truth is that they are streams, and many cool node.js applications can be built to take advantage of this fact. One great example is parsing file uploads in real time, as well as building proxies between different data layers.
Soft Realtime Applications
Another great aspect of node.js is the ease at which you can develop soft real time systems. By that I mean stuff like twitter, chat software, sport bets or interfaces to instant messaging networks.
But please be careful here, since JavaScript is a dynamic / garbage collected language, your response times may sometimes vary depending on how often and long the garbage collection kicks in (at which point your program is stopped). So don't try to build hard realtime systems in node, that require consistent response times. Erlang is probably a better choice for these kinds of applications.