This document provides an overview of React including:
- React components have state and props and use a render function.
- Getting started with React requires including React and ReactDOM scripts in HTML.
- Flux and Redux separate logic and views, with stores holding state and React rendering based on state.
- Redux uses a single store to manage all application state and triggers events when state changes.
- Testing React components can be done with Enzyme.
- React Native allows building mobile apps using React and rendering native UI elements.
Web Components + Backbone: a Game-Changing CombinationAndrew Rota
Web Components promise to change how we think about modularity on the web, and when combined with the structure and organization of Backbone.js we can create portable, dynamic, encapsulated UI modules that fit into any web application.
[Srijan Wednesday Webinars] Developing Large Scale Applications in AngularJSSrijan Technologies
AngularJS is currently at the forefront of MVC (Model View Controller) frameworks for the web, and it makes it very simple to develop prototypes and web applications in it. But how do we ensure that the large scale applications we develop remain high performance, bug free and fast?
In this webinar, our speaker shared his learnings from developing various large scale AngularJS applications. He also shared how to create a maintainable project structure, and cover common performance bottlenecks and best practices to follow.
Watch complete webinar recording: http://youtu.be/b92Y77TExiA
Amongst all the big front end frameworks, Nuxt.js stands out as it has a lot of advantages over the other. This presentation covers an overview of Nuxt.js and how Server Side Rendering helps in improving the SEO of a site.
Web Components + Backbone: a Game-Changing CombinationAndrew Rota
Web Components promise to change how we think about modularity on the web, and when combined with the structure and organization of Backbone.js we can create portable, dynamic, encapsulated UI modules that fit into any web application.
[Srijan Wednesday Webinars] Developing Large Scale Applications in AngularJSSrijan Technologies
AngularJS is currently at the forefront of MVC (Model View Controller) frameworks for the web, and it makes it very simple to develop prototypes and web applications in it. But how do we ensure that the large scale applications we develop remain high performance, bug free and fast?
In this webinar, our speaker shared his learnings from developing various large scale AngularJS applications. He also shared how to create a maintainable project structure, and cover common performance bottlenecks and best practices to follow.
Watch complete webinar recording: http://youtu.be/b92Y77TExiA
Amongst all the big front end frameworks, Nuxt.js stands out as it has a lot of advantages over the other. This presentation covers an overview of Nuxt.js and how Server Side Rendering helps in improving the SEO of a site.
Javascript and first-class citizenry: require.js & node.js
Javascript on web pages is ubiquitous and its problems are legendary. Javascript, seen as a second-class code citizen, is usually hacked together even by seasoned developers. New libraries (jQuery, prototype, backbone, knockout, underscore) and runtime tools (firebug, jasmine) look like they solve many problems - and they do. But they still leave poorly written code as just that. One key problem is that all javascript code lives globally and this results in poorly managed, tested and delivered code.
In this session, I will illustrate that we can treat javascript as a first-class citizen using with require.js and node.js: it can be modular, encapsulated and easily unit tested and added to continuous integration cycle. The dependencies between javascript modules can also be managed and packaged just like in C# and Java. In the end, we can resolve many javascript difficulties at compile time rather than waiting until runtime.
AngularJS is a framework for client-side dynamic web apps. It lets you use HTML as your template language and lets you extend HTML's syntax to express your application's components clearly and succinctly. Angular's low impact nature ties in with Drupal's data handling and structure to allow you rapidly make interactive Javascript applications. Javascript developers will find that Angular's Controller/View structure adapts itself well to Drupal's Block and/or Panel System with minimal disruption to a standard Javascript development workflow - even if that developer has minimal or no Drupal knowledge.
In this talk I'll cover setting up AngularJS in Drupal using the Angles module, how to setup your Angular project structure for a large implementation (it works for small ones too), interacting with Drupal via the Services module and gotchas to watch out for.
This talk is targeted at technical users primarily but managers evaluating using AngularJS with Drupal will also benefit. Having some Javascript experience is recommended but not required.
Алексей Швайка "Bundling: you are doing it wrong"Fwdays
Начинаете новый проект и не знаете что же выбрать: gulp+browserify, webpack или может brunch? SVG или PNG спрайты? На сколько сабдоменов шардить ресурсы? С повсеместным приходом HTTP/2.0 лучшие практики оптимизации загрузки веб-сайтов и приложений весьма изменились, однако наши инструменты -- нет. Как же деливерить несколько раз в день и не вынуждать пользователен перескачивать весь бандл?
Я расскажу об ограничениях HTTP/1.1, почему возникли бандлеры, как внутри работает HTTP/2.0, какие проблемы он решает, что такое server push, развею пару мифов о минификации, поведаю про преимущества progressive rendering, изменениях в whatwg html5 стандарте и покажу два способа (es6 modules и commonjs без препроцессинга) организации модулей на клиенте.
The Complementarity of React and Web ComponentsAndrew Rota
On Github: http://andrewrota.github.io/complementarity-of-react-and-web-components-presentation/index.html
The component driven, performance focused approach of React is a perfect complement to the modularity and portability of native HTML Web Components. At first glance, React and Web Components might seem like two radically different solutions to the same problem. But when combined properly they complement each other to create an extremely powerful, expressive framework for developing complex web applications.
Integrating React.js Into a PHP ApplicationAndrew Rota
React.js has taken the web development world by storm, and for good reason: React offers a declarative, component-oriented approach to building highly-scalable web UIs. But how can we take advantage of a JavaScript library like React in our server-side PHP applications. In this talk l cover the different ways React.js can be integrated into an existing PHP web application: from a client-side only approach to multiple techniques that support full server-side rendering with a Node.js server or PHP’s v8js. I also discuss the trade-offs in each of these designs and the challenges involved with adding React to a PHP site. Most importantly, I consider the higher-level issue of how to improve view cohesion across the client-server divide in a PHP application.
Presentation slides from the December 2011 RubyAZ meeting. Curtis Miller of Flatterline presented on Jekyll, a static site generator that uses Ruby, Liquid and YAML.
See the blog post and video here:
http://ericlathrop.com/2013/05/introduction-to-blogging-with-jekyll/
Use Jekyll to generate static blogs.
Static web sites don't need any special server software, or databases. They're super-fast, and Jekyll gives you complete control over the output HTML.
You will learn how to:
* set up a HTML layout template
* write a post in Markdown
* build a index page with a list of posts
* set up an RSS feed
* extend Jekyll with plugins
* host your blog on GitHub Pages
When to use and when not to use AngularJS - Liju Pillai, www.perfomatix.comPerfomatix Solutions
When to use AngularJS?
Which projects are best suited for AngularJS?
Which projects are not best suited for AngularJS?
Deck by Liju Pillai, www.perfomatix.com
http://www.perfomatix.com/angularjs-development
Introduction to Google Polymer 1.0 at JS Meetup in Athens, Greece. How Polymer builds a comprehensive front-end framework on the "Web Components" standard.
Levent-Gurses' Introduction to Web Components & PolymerErik Isaksen
This is in a developer-focused session on developing iOS apps with Web Components and Google Polymer.
Web Components usher in a new era of web development based on encapsulated and interoperable custom elements that extend HTML itself. Built atop these new standards, Polymer makes it easier and faster to create anything from a button to a complete application across desktop, mobile, and beyond.
Presentations includes following topics :-
Introduction of ReactJS.
Component workflow.
State management and useful life-cycles.
React hooks.
Server Side Rendering.
Javascript and first-class citizenry: require.js & node.js
Javascript on web pages is ubiquitous and its problems are legendary. Javascript, seen as a second-class code citizen, is usually hacked together even by seasoned developers. New libraries (jQuery, prototype, backbone, knockout, underscore) and runtime tools (firebug, jasmine) look like they solve many problems - and they do. But they still leave poorly written code as just that. One key problem is that all javascript code lives globally and this results in poorly managed, tested and delivered code.
In this session, I will illustrate that we can treat javascript as a first-class citizen using with require.js and node.js: it can be modular, encapsulated and easily unit tested and added to continuous integration cycle. The dependencies between javascript modules can also be managed and packaged just like in C# and Java. In the end, we can resolve many javascript difficulties at compile time rather than waiting until runtime.
AngularJS is a framework for client-side dynamic web apps. It lets you use HTML as your template language and lets you extend HTML's syntax to express your application's components clearly and succinctly. Angular's low impact nature ties in with Drupal's data handling and structure to allow you rapidly make interactive Javascript applications. Javascript developers will find that Angular's Controller/View structure adapts itself well to Drupal's Block and/or Panel System with minimal disruption to a standard Javascript development workflow - even if that developer has minimal or no Drupal knowledge.
In this talk I'll cover setting up AngularJS in Drupal using the Angles module, how to setup your Angular project structure for a large implementation (it works for small ones too), interacting with Drupal via the Services module and gotchas to watch out for.
This talk is targeted at technical users primarily but managers evaluating using AngularJS with Drupal will also benefit. Having some Javascript experience is recommended but not required.
Алексей Швайка "Bundling: you are doing it wrong"Fwdays
Начинаете новый проект и не знаете что же выбрать: gulp+browserify, webpack или может brunch? SVG или PNG спрайты? На сколько сабдоменов шардить ресурсы? С повсеместным приходом HTTP/2.0 лучшие практики оптимизации загрузки веб-сайтов и приложений весьма изменились, однако наши инструменты -- нет. Как же деливерить несколько раз в день и не вынуждать пользователен перескачивать весь бандл?
Я расскажу об ограничениях HTTP/1.1, почему возникли бандлеры, как внутри работает HTTP/2.0, какие проблемы он решает, что такое server push, развею пару мифов о минификации, поведаю про преимущества progressive rendering, изменениях в whatwg html5 стандарте и покажу два способа (es6 modules и commonjs без препроцессинга) организации модулей на клиенте.
The Complementarity of React and Web ComponentsAndrew Rota
On Github: http://andrewrota.github.io/complementarity-of-react-and-web-components-presentation/index.html
The component driven, performance focused approach of React is a perfect complement to the modularity and portability of native HTML Web Components. At first glance, React and Web Components might seem like two radically different solutions to the same problem. But when combined properly they complement each other to create an extremely powerful, expressive framework for developing complex web applications.
Integrating React.js Into a PHP ApplicationAndrew Rota
React.js has taken the web development world by storm, and for good reason: React offers a declarative, component-oriented approach to building highly-scalable web UIs. But how can we take advantage of a JavaScript library like React in our server-side PHP applications. In this talk l cover the different ways React.js can be integrated into an existing PHP web application: from a client-side only approach to multiple techniques that support full server-side rendering with a Node.js server or PHP’s v8js. I also discuss the trade-offs in each of these designs and the challenges involved with adding React to a PHP site. Most importantly, I consider the higher-level issue of how to improve view cohesion across the client-server divide in a PHP application.
Presentation slides from the December 2011 RubyAZ meeting. Curtis Miller of Flatterline presented on Jekyll, a static site generator that uses Ruby, Liquid and YAML.
See the blog post and video here:
http://ericlathrop.com/2013/05/introduction-to-blogging-with-jekyll/
Use Jekyll to generate static blogs.
Static web sites don't need any special server software, or databases. They're super-fast, and Jekyll gives you complete control over the output HTML.
You will learn how to:
* set up a HTML layout template
* write a post in Markdown
* build a index page with a list of posts
* set up an RSS feed
* extend Jekyll with plugins
* host your blog on GitHub Pages
When to use and when not to use AngularJS - Liju Pillai, www.perfomatix.comPerfomatix Solutions
When to use AngularJS?
Which projects are best suited for AngularJS?
Which projects are not best suited for AngularJS?
Deck by Liju Pillai, www.perfomatix.com
http://www.perfomatix.com/angularjs-development
Introduction to Google Polymer 1.0 at JS Meetup in Athens, Greece. How Polymer builds a comprehensive front-end framework on the "Web Components" standard.
Levent-Gurses' Introduction to Web Components & PolymerErik Isaksen
This is in a developer-focused session on developing iOS apps with Web Components and Google Polymer.
Web Components usher in a new era of web development based on encapsulated and interoperable custom elements that extend HTML itself. Built atop these new standards, Polymer makes it easier and faster to create anything from a button to a complete application across desktop, mobile, and beyond.
Presentations includes following topics :-
Introduction of ReactJS.
Component workflow.
State management and useful life-cycles.
React hooks.
Server Side Rendering.
JS Fest 2018. Илья Иванов. Введение в React-NativeJSFestUA
Создание нативных мобильных приложений с помощью JavaScript? Без регистрации и WebView? Этот доклад покажет как работает React-Native и заглянет под его капот. Для решения каких задач он был реализован и какие у него существую достоинства и ограничения. Но сперва разберем чем React-Native отличается от гибридных (Hybrid Apps) и прогрессивных (Progressive Web Apps) подходов.
Introduction in the JavaScript Programming language typically used in the front end of Web Applications. More information can be found at : https://www.spiraltrain.nl/course-javascript-programming/?lang=en
Learn basic architecture principles of React-Native, how it works and what exactly is the process of creating native mobile applications with JavaScript.
Slide deck from React Native talk for Central Penn DotNet user group on 01/23/2018.
https://www.meetup.com/Central-Penn-Dot-Net-User-Group/events/245677212/
AngularJS - Architecture decisions in a large project Elad Hirsch
Architecture Decisions in a large project (Elad Hirsch, Web team Leader @ IDI)
At this session we will take practical road - look into IDI Full-Stack architecture, dive around the spec and explore the challenges developing a large scale web project.
Introduction to web application development with Vue (for absolute beginners)...Lucas Jellema
In this slide deck I show you how you can easily and quickly create quite rich web applications with Vue 3 – without having to study complex concepts or understand many technical details. I have only recently learned how to work with Vue 3 myself and now is the best time for me to share my learning experience (and my enthusiasm) with you. I know what I found essential to understand and what most got me excited in these early steps (what was a little bit hard to grasp). I believe that I can present my steps and guide you to experience the same fun and have a similarly gratifying experience. I am not an expert in this subject – I have barely learned how to walk and that is why I can help you with these first steps with Vue.
In this deck, I do not explain how Vue works. I do not really know that. I will show you how to work with it and how to create web applications that are functional, appealing, fast and responsive.
The approach I am taking is straightforward:
• I will tell you a little bit about web development, browsers and reactive frameworks
• I will show the hello world of Vue applications
• I will explain about components and nesting, events, data binding and reactive behavior and demonstrate these concepts
• I will introduce Vue UI Component libraries – and with no effort at all we will launch our application to the next level – with rich components to explore, manipulate, visualize data collections
• We will publish the web application from our development environment to where the whole world could see it – using GitHub Pages
• As bonus topic – we discuss state management
At the end of this session you will be able to quickly create a simple yet rich web application with Vue 3. You have a starting point to further evolve your skills with the many online resources I am convinced that you will enjoy your newfound powers and the simplicity and power of Vue 3.
Note: a tutorial accompanies this slide deck - see https://github.com/lucasjellema/code-face-vue3-intro-reactiive-webapps-aug2023/blob/main/README.md
JavaScript front end performance optimizationsChris Love
No one wants a slow loading, slow reacting application. As page weight has increased so has the dependency on JavaScript to drive rich user experiences. Today many pages load over 2MBs of JavaScript, but is this healthy? Do your scripts and dependencies perform well? In this session we will review common JavaScript performance bottlenecks, how to detect them and how to eliminate them.
This session will review common bad coding syntax, architecture and how to replace them with better alternatives. You will also be exposed to caching, code organization, build and deployment best practices that produce the best user experiences. Finally, you will see how to use the navigation timing and performance timing APIs to fine tune your applications to produce a fast, lean application your customers will love.
Splitting your source code into separate modules and importing them into the current namespace is the standard way of coding for the backend. Until recently this has not been possible in the frontend because of the time it would have taken to synchronously load all required assets.
Tools like Webpack and JSPM allow exactly that and much more. This talk is going to give you an overview over the two and show why you should stop putting everything into the global namespace.
React is a JavaScript library for building user interfaces. It is maintained by Facebook and a community of individual developers and companies. React can be used as a base in the development of single-page or mobile application
React has been named the front-end library to learn in 2016! React Native has also picked up tremendous steam as a way to build cross-platform apps with React. In this talk, Rami will do a quick 5 minute introduction to React's core concepts. Following, Rami will introduce React Native, discuss the differences between React & React Native, and show you how to build a simple Android application. By the end of this talk, you will have a greater grasp of the ecosystem and leave with new tools in your developer arsenal.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
2. Who am I?
• Background
• Onavo
• Battlehacks
• OpenRest
• Wix Restaurants
yoava@wix.com https://github.com/3LOK
3. React – General Principle
• You write components
• Components have a state and props
• Each components has a render function
Render
Props
State
Virtual
DOM
6. • Separation of Logic (Flux, Reflux, Redux) and
Views (React)
• Store(s) - Hold the state.
• React – Renders according to state.
• Actions / Reducers – Update the store according
to events
Flux - ?
7. Flux - ?
Stores
(hold app state)
React Components
(transform app state to
virtual dom)
Actions update state
8. Redux
• Components are divided to two
– Dumb: No state, no actions, all props
– Smart: State from store, wrap dumb components, calls
actions
• Store
– Single Store. Stores all application state
– Triggers event
11. Redux-Saga (Advanced)
• Generators
• Write your code in stories (sagas)
– Change the state to show a welcome screen
– Wait for the user to press continue
– Change the state to show the checkout process
15. React Native
• Write in Javascript (ES6+) – Use all libraries you’re used to.
• Code is bundled using WebPack into a single JS file.
• React Native Infrastructure rubs code using JavaScriptCore
• “Catches” UI elements generations and executes using OS
API
“Fast-forward a couple of months, and I’m confident enough to say I may never write an iOS
app in Objective-C or Swift again” (link)
16. React – Two Common Pitfalls
• Changing state and props directly (react and redux)
• Not using ‘keys’
return (
<div>
{
restaurants.map((rest, index) =>
<Restaurant
title={rest.title}
description={rest.description}
key={rest.id}
/>
)}
</div>
);
