The document provides an overview of Node.js, a JavaScript runtime environment that allows JavaScript to be used for server-side scripting. Some key points:
- Node.js uses Google's V8 JavaScript engine and allows JavaScript code to be run on the server side, providing a single language for both client-side and server-side development.
- This avoids duplicating code across different programming languages and platforms and reduces maintenance.
- Node.js is well-suited for real-time applications with many concurrent connections due to its asynchronous and event-driven model.
- However, using JavaScript for all development has drawbacks like lack of specialization and debugging challenges. The future of Node.js depends on
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.
The document is a presentation about Node.js that discusses what problem it helps solve, its use of event-driven and non-blocking I/O, common use cases, industry support and examples of usage, how to code in Node.js including modules and frameworks, and how to scale Node.js applications. The presentation was given by Ovidiu Dimulescu at the Jax CodeCamp in October 2012.
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 summarizes Jeremy Whitlock's talk at Gluecon 2014 about bringing Node.js to the JVM using a project called Trireme. Trireme allows embedding Node.js in the JVM, enabling interoperability between Java and Node.js code. Two use cases are discussed: using Node.js for managing API proxies at Apigee, and writing MapReduce jobs in JavaScript/Node.js instead of Java. The document introduces Trireme and a related project called Lembos that provides a MapReduce runtime for writing MapReduce jobs in Node.js that run on Hadoop.
NodeJS is an open-source and cross-platform JavaScript runtime environment that allows JavaScript to be used for server-side scripting. The document discusses what NodeJS is, why it was created, how to use it, who uses it, and its use in China (CNodeJS). Key points are that NodeJS is used for building scalable network applications using non-blocking I/O and the JavaScript language, and that it has seen significant adoption in China from companies like Taobao and Sina for building web servers and real-time applications.
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.
The document provides an introduction to Node.js, a JavaScript runtime environment for server-side development. It discusses how Node.js uses non-blocking I/O and event loops to handle concurrent connections efficiently. Examples are given demonstrating how to build basic HTTP and TCP servers in just a few lines of JavaScript code. Common use cases for Node.js include real-time applications and static file serving.
This document provides an overview of server-side JavaScript using Node.js in 3 sentences or less:
Node.js allows for the development of server-side applications using JavaScript and non-blocking I/O. It introduces some theory around event loops and asynchronous programming in JavaScript. The document includes examples of building HTTP and TCP servers in Node.js and connecting to MongoDB, as well as when Node.js may and may not be suitable.
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.
The document is a presentation about Node.js that discusses what problem it helps solve, its use of event-driven and non-blocking I/O, common use cases, industry support and examples of usage, how to code in Node.js including modules and frameworks, and how to scale Node.js applications. The presentation was given by Ovidiu Dimulescu at the Jax CodeCamp in October 2012.
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 summarizes Jeremy Whitlock's talk at Gluecon 2014 about bringing Node.js to the JVM using a project called Trireme. Trireme allows embedding Node.js in the JVM, enabling interoperability between Java and Node.js code. Two use cases are discussed: using Node.js for managing API proxies at Apigee, and writing MapReduce jobs in JavaScript/Node.js instead of Java. The document introduces Trireme and a related project called Lembos that provides a MapReduce runtime for writing MapReduce jobs in Node.js that run on Hadoop.
NodeJS is an open-source and cross-platform JavaScript runtime environment that allows JavaScript to be used for server-side scripting. The document discusses what NodeJS is, why it was created, how to use it, who uses it, and its use in China (CNodeJS). Key points are that NodeJS is used for building scalable network applications using non-blocking I/O and the JavaScript language, and that it has seen significant adoption in China from companies like Taobao and Sina for building web servers and real-time applications.
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.
The document provides an introduction to Node.js, a JavaScript runtime environment for server-side development. It discusses how Node.js uses non-blocking I/O and event loops to handle concurrent connections efficiently. Examples are given demonstrating how to build basic HTTP and TCP servers in just a few lines of JavaScript code. Common use cases for Node.js include real-time applications and static file serving.
This document provides an overview of server-side JavaScript using Node.js in 3 sentences or less:
Node.js allows for the development of server-side applications using JavaScript and non-blocking I/O. It introduces some theory around event loops and asynchronous programming in JavaScript. The document includes examples of building HTTP and TCP servers in Node.js and connecting to MongoDB, as well as when Node.js may and may not be suitable.
This document provides an introduction and overview of Node.js. It discusses that Node.js is an event-driven JavaScript environment for building scalable network applications. It also covers programming in Node.js, popular web frameworks like Express and Railway, Node.js internals including the V8 engine, factors contributing to Node.js' popularity, and some disadvantages like difficulties with synchronous code and debugging.
Nuxeo World Session: Scaling Nuxeo ApplicationsNuxeo
This document discusses scaling Nuxeo applications by ensuring good performance. It emphasizes defining usage hypotheses and constraints, conducting performance testing, and ongoing tuning. Key points include spreading services across VMs, using a VCS cluster for redundancy and scaling out, and partitioning data across multiple repositories. Benchmark results show document retrieval and insertion operations can achieve throughput of hundreds per second depending on the scenario. Regular performance monitoring and tuning of software configurations and databases is important for scaling Nuxeo applications.
Introducing Apricot, The Eclipse Content Management PlatformNuxeo
This talk delivered by Florent Guillaume, Director of R&D at Nuxeo, will provide the audience with a global understanding of what Apricot is and also provide a general overview of what a Content Repository is from a functional standpoint: exploring all the services it offers, identifying the main standards and technologies integrated within a framework of this caliber, such as the Content Management Interoperability Standard (CMIS), and understanding the main technical challenges to be resolved, in particular high scalability and high performance.
Node.js Tutorial for Beginners | Node.js Web Application Tutorial | Node.js T...Edureka!
This Edureka "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
9) Demo – Grocery List Web Application using Node.js
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.
This document discusses how to create mobile apps that feel native using only web technologies. It covers supporting features in Mobile Safari like local storage, CSS3 features, and geolocation. It recommends using web technologies over native due to quicker iteration times. Specific techniques covered include detecting browser type, adding home screen icons, startup images, going full screen, and viewport settings. The document also discusses frameworks like jQuery Mobile but notes native DOM APIs may be sufficient. It covers input features, touch vs click, animations, locking orientation, and performance tips. It acknowledges limitations of Android and webOS and recommends testing on actual devices. Finally, it discusses hybrid mobile frameworks like PhoneGap and Titanium that allow developing for multiple platforms using one code
A quick overview on Node.js to see how Javascript is changing server programming : brief history & motivations, what makes NodeJS so special/popular/difficult, typical use cases, and a few popular tools around the NodeJs world : npm, Grunt, IISNode, Tools for Visual Studio, …
Tricks and Tips With NIO Using the Grizzly Frameworkelliando dias
Project Grizzly is an open source NIO framework that aims to simplify building scalable servers using non-blocking sockets. The presenters discuss Project Grizzly's performance advantages over other frameworks like Apache MINA. They provide an overview of Java NIO concepts like selectors and byte buffers. The presenters then share several tips and tricks they learned while developing Project Grizzly, such as using SelectionKey.attach() carefully since attached objects may not be reclaimed if the key is not returned to a ready state.
This document discusses Java 8's Nashorn JavaScript engine. It provides an overview of Nashorn, comparing it to previous JavaScript engines like Rhino. Nashorn is a new implementation of JavaScript for the JVM that is compiled rather than interpreted, resulting in much better performance and smaller memory footprint compared to Rhino. The document also discusses how Nashorn enables JavaScript to be used with Java technologies and provides some examples of Nashorn usage.
JavaScript as a Server side language (NodeJS): JSConf 2011, DhakaNurul Ferdous
This document provides an overview of NodeJS and ExpressJS. It discusses NodeJS as a server-side JavaScript platform and how its asynchronous and event-driven model provides benefits over traditional synchronous approaches. ExpressJS is introduced as a popular web framework built on NodeJS that provides routing, templating and other features to build web applications. The document demonstrates basic usage of NodeJS and ExpressJS.
Dynamic Languages & Web Frameworks in GlassFishIndicThreads
“Dynamic languages such as JRuby, Groovy, and Jython are increasingly playing an important role in the web these days. The associated frameworks such as Rails, Grails, and Django are gaining importance because of the agility provided by them.
The GlassFish project provides an easy-to-use and robust development and deployment platform for hosting these web applications. It also enables the various languages to leverage the investment in your existing Java Platform, Enterprise Edition (Java EE platform) infrastructure. This session gives an overview of various Dynamic Languages and associated Web frameworks that can be used on the GlassFish project.
It starts with a brief introduction to JRuby and details on how the GlassFish project provides a robust development and deployment platform for Rails, Merb, Sinatra and other similar applications without pain. As a basis for further discussion, this presentation shows the complete lifycycle for JRuby-on-Rails applications on GlassFish v2 and v3. It discusses the various development options provided by GlassFish v3, demonstrates how popular Rails applications can be easily deployed on GlassFish without any modification, and shows how v3 Gem can be used as an effective alternative to WEBrick and Mongrel. It also demonstrates debugging of Rails applications using NetBeans IDE. For enterprise users, it shows how JMX and other mechanisms can be used to monitor Rails applications.
It also talks in detail about the Groovy/Grails and Python/Django development and deployment models in context of GlassFish v3. By following the simple deployment steps the presentation shows, developers will be able to deploy their existing web applications on the GlassFish project.The session also describes the known limitations and workarounds for each of them.
The talk will show a working sample created in different frameworks and deployed on GlassFish v3. The demo will show how different features of the underlying GlassFish runtime are easily accessible to the frameworks running on top of it.”
The document outlines the agenda for a presentation on Node.js, which includes defining what Node.js is, how it works, examples of its use, how to learn Node.js, and what problems it is well-suited to solve. Key points are that Node.js is a JavaScript runtime built on Chrome's V8 engine, uses non-blocking I/O, and is well-suited for building microservices and real-time applications that require high throughput and scalability. Recommended resources for learning more include nodeschool.io, codewars.com, and nodeup.com.
Nodejs Event Driven Concurrency for Web ApplicationsGanesh Iyer
We describe the event-driven concurrency model used by Nodejs, a JavaScript server-side scripting platform. An overview of the traditional thread based approach(used by Apache) is also given. We compare both the approaches. An Introduction to Nodejs programming is provided and some useful packages are discussed.
Fundamental of Node.JS - Internship Presentation - Week7Devang Garach
Fundamental of Node.JS - Internship Presentation - Week 7
What is Node.JS
Features of Node.JS
Node.JS Architecture
Core modules in Node.JS
Node.JS Installation
npm
Creating first node.js application
ngGoBuilder and collaborative development between San Francisco and Tokyonotolab
This document discusses ngGoBuilder, a game engine and set of tools for developing games using ngCore. It describes ngGoBuilder 1.x features like scrolling layers and particle effects. It then discusses plans for ngGoBuilder 2.0 which will focus on a better user experience and include ngCore, debugging tools, and sample games. Future roadmaps include improved animation support and integration with the ngServer platform. The document also covers collaboration between the San Francisco and Tokyo teams working on the project.
This document discusses the importance of social media management for the public sector. A survey of 420 people from 318 public sector organizations found that 82% saw social media as very important or important. The survey also showed that managers made up the largest percentage of participants at just over 40%. The document promotes social media management services for the public sector from GOSS Interactive and provides their website for more information.
This document provides an introduction and overview of Node.js. It discusses that Node.js is an event-driven JavaScript environment for building scalable network applications. It also covers programming in Node.js, popular web frameworks like Express and Railway, Node.js internals including the V8 engine, factors contributing to Node.js' popularity, and some disadvantages like difficulties with synchronous code and debugging.
Nuxeo World Session: Scaling Nuxeo ApplicationsNuxeo
This document discusses scaling Nuxeo applications by ensuring good performance. It emphasizes defining usage hypotheses and constraints, conducting performance testing, and ongoing tuning. Key points include spreading services across VMs, using a VCS cluster for redundancy and scaling out, and partitioning data across multiple repositories. Benchmark results show document retrieval and insertion operations can achieve throughput of hundreds per second depending on the scenario. Regular performance monitoring and tuning of software configurations and databases is important for scaling Nuxeo applications.
Introducing Apricot, The Eclipse Content Management PlatformNuxeo
This talk delivered by Florent Guillaume, Director of R&D at Nuxeo, will provide the audience with a global understanding of what Apricot is and also provide a general overview of what a Content Repository is from a functional standpoint: exploring all the services it offers, identifying the main standards and technologies integrated within a framework of this caliber, such as the Content Management Interoperability Standard (CMIS), and understanding the main technical challenges to be resolved, in particular high scalability and high performance.
Node.js Tutorial for Beginners | Node.js Web Application Tutorial | Node.js T...Edureka!
This Edureka "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
9) Demo – Grocery List Web Application using Node.js
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.
This document discusses how to create mobile apps that feel native using only web technologies. It covers supporting features in Mobile Safari like local storage, CSS3 features, and geolocation. It recommends using web technologies over native due to quicker iteration times. Specific techniques covered include detecting browser type, adding home screen icons, startup images, going full screen, and viewport settings. The document also discusses frameworks like jQuery Mobile but notes native DOM APIs may be sufficient. It covers input features, touch vs click, animations, locking orientation, and performance tips. It acknowledges limitations of Android and webOS and recommends testing on actual devices. Finally, it discusses hybrid mobile frameworks like PhoneGap and Titanium that allow developing for multiple platforms using one code
A quick overview on Node.js to see how Javascript is changing server programming : brief history & motivations, what makes NodeJS so special/popular/difficult, typical use cases, and a few popular tools around the NodeJs world : npm, Grunt, IISNode, Tools for Visual Studio, …
Tricks and Tips With NIO Using the Grizzly Frameworkelliando dias
Project Grizzly is an open source NIO framework that aims to simplify building scalable servers using non-blocking sockets. The presenters discuss Project Grizzly's performance advantages over other frameworks like Apache MINA. They provide an overview of Java NIO concepts like selectors and byte buffers. The presenters then share several tips and tricks they learned while developing Project Grizzly, such as using SelectionKey.attach() carefully since attached objects may not be reclaimed if the key is not returned to a ready state.
This document discusses Java 8's Nashorn JavaScript engine. It provides an overview of Nashorn, comparing it to previous JavaScript engines like Rhino. Nashorn is a new implementation of JavaScript for the JVM that is compiled rather than interpreted, resulting in much better performance and smaller memory footprint compared to Rhino. The document also discusses how Nashorn enables JavaScript to be used with Java technologies and provides some examples of Nashorn usage.
JavaScript as a Server side language (NodeJS): JSConf 2011, DhakaNurul Ferdous
This document provides an overview of NodeJS and ExpressJS. It discusses NodeJS as a server-side JavaScript platform and how its asynchronous and event-driven model provides benefits over traditional synchronous approaches. ExpressJS is introduced as a popular web framework built on NodeJS that provides routing, templating and other features to build web applications. The document demonstrates basic usage of NodeJS and ExpressJS.
Dynamic Languages & Web Frameworks in GlassFishIndicThreads
“Dynamic languages such as JRuby, Groovy, and Jython are increasingly playing an important role in the web these days. The associated frameworks such as Rails, Grails, and Django are gaining importance because of the agility provided by them.
The GlassFish project provides an easy-to-use and robust development and deployment platform for hosting these web applications. It also enables the various languages to leverage the investment in your existing Java Platform, Enterprise Edition (Java EE platform) infrastructure. This session gives an overview of various Dynamic Languages and associated Web frameworks that can be used on the GlassFish project.
It starts with a brief introduction to JRuby and details on how the GlassFish project provides a robust development and deployment platform for Rails, Merb, Sinatra and other similar applications without pain. As a basis for further discussion, this presentation shows the complete lifycycle for JRuby-on-Rails applications on GlassFish v2 and v3. It discusses the various development options provided by GlassFish v3, demonstrates how popular Rails applications can be easily deployed on GlassFish without any modification, and shows how v3 Gem can be used as an effective alternative to WEBrick and Mongrel. It also demonstrates debugging of Rails applications using NetBeans IDE. For enterprise users, it shows how JMX and other mechanisms can be used to monitor Rails applications.
It also talks in detail about the Groovy/Grails and Python/Django development and deployment models in context of GlassFish v3. By following the simple deployment steps the presentation shows, developers will be able to deploy their existing web applications on the GlassFish project.The session also describes the known limitations and workarounds for each of them.
The talk will show a working sample created in different frameworks and deployed on GlassFish v3. The demo will show how different features of the underlying GlassFish runtime are easily accessible to the frameworks running on top of it.”
The document outlines the agenda for a presentation on Node.js, which includes defining what Node.js is, how it works, examples of its use, how to learn Node.js, and what problems it is well-suited to solve. Key points are that Node.js is a JavaScript runtime built on Chrome's V8 engine, uses non-blocking I/O, and is well-suited for building microservices and real-time applications that require high throughput and scalability. Recommended resources for learning more include nodeschool.io, codewars.com, and nodeup.com.
Nodejs Event Driven Concurrency for Web ApplicationsGanesh Iyer
We describe the event-driven concurrency model used by Nodejs, a JavaScript server-side scripting platform. An overview of the traditional thread based approach(used by Apache) is also given. We compare both the approaches. An Introduction to Nodejs programming is provided and some useful packages are discussed.
Fundamental of Node.JS - Internship Presentation - Week7Devang Garach
Fundamental of Node.JS - Internship Presentation - Week 7
What is Node.JS
Features of Node.JS
Node.JS Architecture
Core modules in Node.JS
Node.JS Installation
npm
Creating first node.js application
ngGoBuilder and collaborative development between San Francisco and Tokyonotolab
This document discusses ngGoBuilder, a game engine and set of tools for developing games using ngCore. It describes ngGoBuilder 1.x features like scrolling layers and particle effects. It then discusses plans for ngGoBuilder 2.0 which will focus on a better user experience and include ngCore, debugging tools, and sample games. Future roadmaps include improved animation support and integration with the ngServer platform. The document also covers collaboration between the San Francisco and Tokyo teams working on the project.
This document discusses the importance of social media management for the public sector. A survey of 420 people from 318 public sector organizations found that 82% saw social media as very important or important. The survey also showed that managers made up the largest percentage of participants at just over 40%. The document promotes social media management services for the public sector from GOSS Interactive and provides their website for more information.
Channel Shift Understanding Your Customers #channelshiftcampGOSS Interactive
The document discusses understanding customers through the creation of personas in order to successfully implement channel shift. It provides an agenda that includes discussing channel shift challenges, agreeing on outputs, and understanding customers. The outputs listed are shortcuts for using demographics, a process for creating personas with examples of best practices and case studies. It then discusses engagement workshops to understand customer needs and creating personas focused on those needs to guide channel shift, which requires gaining customer insight, developing customer and channel strategies, and making improvements.
Channel Shift Understanding Your Channels #channelshiftcamp GOSS Interactive
This document outlines an agenda for a webinar on understanding channels for channel shift. The webinar will discuss challenges with channel shift, agreeing on outputs like cost savings, and understanding channels. It will also include a Q&A section. The webinar aims to provide insight into how to successfully deliver channel shift through understanding customers, developing customer and channel strategies, improving channels and processes, and measuring outputs like cost savings.
Goss Interactive provides online customer experience management services through their GOSS Clients platform located at www.gossinteractive.com. The company helps organizations improve customer relationships and satisfaction by managing online interactions across various digital channels in a centralized manner. GOSS Clients allows companies to track customer support requests, feedback, and behavior to gain insights and enhance the digital customer journey.
Nottingham City Council developed a web strategy to make its website the primary online resource for local residents. The strategy aimed to provide easy access to council and non-council information through self-service tools and an engaging site. The council drove traffic through search engine optimization, social media promotion, and offline advertising. Implementation resulted in increased visits, time on site, and a silver reputation award for the council's digital media efforts. Future plans included single sign-on and an internal social network using popular platforms.
Presentation from Work Smarter | Deliver More event hosted at North Lanarkshire Council in conjunction with GOSS Interactive.
http://www.gossinteractive.com/online_efficiency
#gossevent
Capita Channel Shift in the Public Sector - GOSS six step strategy for channe...GOSS Interactive
Six Step Strategy for Channel Shift Success
Understanding your customers and designing a user centred
strategy
Mapping your channels to reduce costs and drive efficiency
Case studies to maximise the return on investment
Re-engineering your processes
Dave Witts Dave Witts, Transformation Practitioner, GOSS Interactive.
The only way to move customers to online channels is to deliver a superior web experience. Our specialist consultants work with organisations across the UK to develop, implement and extend web strategies that deliver better customer service at the lowest cost.
How social media management is driving channel shiftGOSS Interactive
Public Sector Social Media survey results
Social Media best practice guide
Why Social Media Management is essential for communicating with citizens, listening to service users, delivering customer service, market research and crisis management.
Social Media is increasingly important to your organisation with 82% of adults now online and 43% actively using Social Media. And with the rise of smartphone use and 56% of UK adults now in possession of a web-enabled phone, social media presents a huge opportunity for enhancing service delivery.
Presentation from Work Smarter | Deliver More event hosted at North Lanarkshire Council in conjunction with GOSS Interactive.
http://www.gossinteractive.com/online_efficiency
#gossevent
What's wrong with online engagement today?
Understand how charities can increase donations online.
This webinar will illustrate the challenges around usability and current thinking of digital engagement whilst providing insight on how to improve and enhance your online strategy.
Node.js is a JavaScript runtime built on Chrome's V8 engine that allows JavaScript code to be run outside of a browser. It introduces asynchronous and event-driven programming to JavaScript. Native addons allow integrating C/C++ code and libraries into Node.js applications for performance reasons or to interface with legacy code. The N-API provides a stable API for building native addons that is compatible across Node.js versions to avoid breakage. Examples demonstrate how to create asynchronous native addons that interface between JavaScript and C++ code.
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows JavaScript to be run on the server-side and is used for building scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, as it can handle multiple connections simultaneously without blocking. Many popular web servers and applications are built with Node.js.
Isomorphic JavaScript applications can share the same code and run on both the front end and back end. It is also a spectrum containing applications that share minimal bits of validation logic with ones that share a bulk of the application code. Nashorn is a new JavaScript engine for Java that was released with Java 8. The Nashorn JavaScript engine makes isomorphic web apps on the JVM possible by allowing the exact same browser code to run on the server. This enables us to achieve the don’t-repeat-yourself (DRY) principle, by reducing repetition in a multitier architecture. This presentation covers the key concepts, rationale, and categories of Isomorphic JavaScript and how it makes your large applications maintainable.
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.
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
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows JavaScript to be used for server-side scripting, enabling developers to write scalable network applications using JavaScript. Some key features of Node.js include non-blocking I/O calls, asynchronous programming, and an event loop that handles concurrency. Popular uses of Node.js include real-time web applications with websockets, fast file uploads, and any application requiring real-time data processing.
An interpreted, cross-platform, and lightweight client-side scripting language is called JavaScript. Java and HTML are both present. Burraq IT Solutions is an IT institute offering Node.js training in Lahore, Pakistan. Node.js is an open-source, cross-platform, server-side JavaScript courses runtime environment built on Google Chrome’s V8 JavaScript engine. IN contrast, Node.js is a V8-based server-side programming language. It's employed to create network-centric apps as a result. It is a network system designed for real-time, data-intensive applications. It is evident from a comparison between node js vs python that node js will always be the better choice.
Node.js is a JavaScript runtime environment that allows JavaScript to be run on the server side. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient for data-intensive real-time applications that require persistent connections. Some common uses of Node.js include real-time web applications, building APIs, and handling multiple connections at once without creating new threads. The document discusses why Node.js is well-suited for applications that require maintaining persistent connections from the browser to send updates in real-time using techniques like long-polling.
Server-side JavaScript (SSJS) is gaining popularity due to factors like the rise of NoSQL databases, asynchronous programming, and JavaScript's ubiquity. SSJS environments like Node.js, CommonJS, and AppEngineJS allow developers to use JavaScript beyond the browser by running it on the server. Google App Engine also provides a platform for hosting SSJS applications and automatically scaling them.
Developing realtime apps with Drupal and NodeJS drupalcampest
Based on Google's V8 JavaScript engine, NodeJS is a fairly new platform for creating scalable and real-time web applications. I will introduce you to NodeJS internals and ecosystem as well as exaplain why and how you can use Node in your Drupal based projects.
Node.js is a JavaScript runtime built on Chrome's V8 engine that allows JavaScript to run on the server side. It is popular for building web servers and APIs due to its asynchronous and event-driven nature which allows non-blocking I/O operations. This allows Node.js to handle many concurrent connections efficiently using a single-threaded model. While both Node.js and browsers use JavaScript, they have different ecosystems - Node.js provides access to the filesystem and requires no DOM while browsers provide the DOM and other web APIs but have limited filesystem access. The V8 engine powers both Node.js and Chrome and is continuously optimized for performance. Node.js supports the latest ECMAScript standards without needing to wait for
Node.js is a JavaScript runtime built on Chrome's V8 engine that allows JavaScript to run on the server side. It is popular for building web servers and networking applications. The document provides an overview of Node.js, how to install it, differences from the browser, the V8 engine, an example app, and an introduction to NPM - the package manager for Node.js projects. NPM is used to install dependencies, update packages, and define scripts to run tasks like building assets or starting servers.
The document provides an overview of the MEAN stack, which is a full-stack JavaScript solution for building web applications. It consists of MongoDB (a NoSQL database), Express (a Node.js web application framework), AngularJS (a client-side framework), and Node.js (a JavaScript runtime). The document discusses each component, how they work together, advantages like using a single programming language throughout and ability to build fast applications, and disadvantages like MongoDB not being as robust as SQL databases. It concludes that MEAN provides a fast, easy way to create modern, responsive dynamic web sites.
Web Development with Aimprosoft, a front-runner in Node.js web development services, has been leveraging its extensive JavaScript module library, streamlining the creation of robust web applications.
This document summarizes a presentation on Node.js for .NET developers. It introduces the speaker David Neal and moderator Alvin Ashcraft. The presentation covers why developers use Node.js, provides a crash course on Node.js basics, and discusses tools, frameworks and strategies for integrating Node.js with .NET applications. Examples of companies using Node.js successfully are also presented.
IBM InterConnect: Java vs JavaScript for Enterprise WebAppsChris Bailey
The last few years have see a huge growth in the usage of JavaScript, to the extent that it is often reported to be the #1 programming language in use today. Additionally, the arrival of server-side JavaScript through frameworks such as Node.js and Ringo.js, and JavaScript on the JVM through Nashorn and Avatar.js, mean that enterprise web applications written in JavaScript are not just a possibility—but a reality for companies such as LinkedIn, eBay, Yahoo, ADP and Dow Jones. This session will compare and contrast the two platforms and describe the advantages of each for deploying, managing and monitoring highly scalable applications. It will also introduce IBM's strategy for building a common ecosystem around the two languages.
Presented at IBM InterConnect, Feb 25th, 2015
Are you ready for cloud-native java JavaCro2019Jamie Coleman
This document provides an overview of moving Java applications to a cloud-native approach. It begins with a quiz asking if cloud-native requires throwing out existing knowledge or if modern Java runtimes allow reusing and extending existing applications. It then discusses how the Java ME runtime was designed for constrained environments like mobile and how its traits like small footprint and fast startup apply to cloud environments where compute equals money. The document explores how OpenJDK and OpenJ9 provide cloud-native Java runtimes with improved performance and lower memory usage. It notes that while runtimes help, application architecture also matters for cloud and microservices introduce challenges like network latency and security. Finally, it discusses how the MicroProfile project provides specifications to help build cloud-
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows JavaScript to be run on the server-side and is well-suited for real-time, event-driven applications due to its asynchronous and non-blocking I/O model. It was created in 2009 by Ryan Dahl who was frustrated by the limitations of JavaScript in the server-side. Node.js uses an event loop that handles asynchronous callbacks and a single thread model to achieve scalable performance. Many large companies like Uber, LinkedIn, and Netflix use Node.js for applications that require real-time features or high throughput.
The document discusses whether JavaScript can be elegant. It notes that new JavaScript frameworks aim to simplify complex browser-side programming. It also includes quotes from different people discussing how enterprises view JavaScript developers and whether JavaScript needs to be replaced.
Don’t Let Your Businesses Get Hampered By Large Volume Codes: Nodejs Is Your ...Techahead Software
This is because it can efficiently handle a large number of simultaneous connections. To stay lightweight and effective in the face of data-intensive real-time applications that operate across dispersed devices, Node.js leverages non-blocking, event-driven I/O. One can hire node js developers to address a specific crucial requirement.
Source: https://vocal.media/01/don-t-let-your-businesses-get-hampered-by-large-volume-codes-nodejs-is-your-saviour
6. How many of you use JavaScript?
Put your hands UP if YES
Is the majority of your JavaScript jQuery?
Put your hands DOWN if YES
Are you using any server-side JavaScript?
Put yours hands DOWN if NO
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15. The Implementation
Java Mozilla Rhino
Site
Browser
CF
Site
/^[A-D][0-9]{4}$/i.test(v) .NET
Site
MS Jscript
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16. What Next?
Like the idea of common language on all platforms
(But Clients still expect .NET sites to be .NET like & Java sites to be Java like)
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17. Entire Forms engine?
Complex
Benefits from implementing once
Needs to be extensible
There is always a new requirements
Clients could create their own extensions
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18. So we did it!
Forms generated using a simple template* containing JavaScript
<%
if ( Props["FIELDPROPERTIES"]["MAXLENGTH"] !== "") {
maxLength="maxlength='" + Props["FIELDPROPERTIES"]["MAXLENGTH"] + "'";
}
%>
<label for='<%=Props["FIELDID"]%>'><%=Processor.htmlEsc(Props["FIELDPROPERTIES"]["LABEL"])%></label>
<input type="text" name="<%=Props["FIELDID"]%>" id="<%=Props["FIELDID"]%>" <%=maxLength%>/>
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19. Snag
We really needed a good, fast JavaScript engine on all platforms.
JScript was problem
19
20. V8 Arrives!
Created by Google for Chrome
Also designed to be used in other apps
20
21. V8 is FAST!!
Clever optimisations and compiling to native code.
Not quite as dramatic now as when it first appeared
21
22. V8 is Single Threaded!!
Only one thread can execute JavaScript at a time
V8 Locking can help synchronize multiple threads
One of reasons it’s fast
Multi-threading can get complex…and slow
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23. V8.net wrapper
Replaced JScript with JavaScript .NET from Noesis
Proved reliable in production deployment
Real JavaScript
Much faster than Jscript!!
23
24. V8 is Single Threaded!!
A problem for traditional server-side scalability
How do you handle multiple concurrent requests?
24
25. V8.net wrapper
Limited by single threading
Resorted to a global lock around execution
But an evolutionary dead-end while V8 is single threaded
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33. Simple web server
Continuations break processing into steps
Function called on each request
Function called when file contents available
33
34. Node.JS
Lots of additional modules
Really learn JavaScript the language not just jQuery
Google ‘Douglas Crockford’
Look at source code of real projects
Combine it with MongoDB for end-to-end JSON
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35. Node.JS
Think carefully if your application needs it
Highly interactive?
Loads of AJAX?
Very high number of requests?
Not just because you can!
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39. Real world code is hard
How many developers
really understand it?
Many can tweak, but
starting from scratch…
Debugging can be difficult
Node-inspector worth a
look
39
45. Sooner or later something has to
do something
For many things this is not a problem
eg
Database modules written to be asynchronous
45
46. Non blocking?
This example is computationally
intensive. It results in high CPU
use on any system.
On Node.JS it would only
process one request at a time.
n=40 takes about 5s
3 concurrent requests:
1 client will wait 15s
46
47. V8 is single threaded!
A badly written extension and Bye Bye server…
47
50. Best of all worlds
Requests delegated to a suitable worker or queued if worker busy
A CGI style wrapper round the V8 engine allowing use of traditional linear
JavaScript. It’s a good match for our approach to forms rendering
50
51. Where Next?
Does the industry need Node.JS?
Other web servers can/will achieve similar performance
So its really all about the language?
51
52. Is 1 Language an ideal?
Same developers for UI and Backend?
Common in start-ups
Less so in the ‘enterprise’
Jack of all trades master of none?
52
70. Final Thoughts….
The web is changing at pace.
There will be lots of shiny toys
They might not lead to nirvana
but they will often give you a glimpse of a very exciting future!!
Stay Excited…
70