React Nativeの光と闇

What is React-Native? Why React-Native? How React-Native works in detail? - Metro bundler - Main Thread - Shadow Thread - Javascript Thread Yoga Engine Threads Communication in React-Native Comparison with Flutter and Native React-Native Components

The document provides an introduction and overview of ES6, React, and Redux. It begins with an in-depth section about new features and syntax in ES6, including variable types, arrow functions, modules, classes, and more. It then discusses React, explaining concepts like the virtual DOM, one-way data flow, JSX syntax, props, nested components, conditionals, and state/setState. Finally, it briefly introduces Redux and mentions using React components on the server and in mobile apps with React Native.

The document discusses React's virtual DOM and how it allows for more efficient DOM updates compared to directly manipulating the real DOM. It explains that the virtual DOM is an in-memory representation of the real DOM that allows React to calculate efficient DOM changes before applying them to the real DOM. This avoids unnecessary re-renders and improves performance. It also describes how React uses a diff algorithm and DOM traversal with breadth-first search to determine the minimal number of operations needed to transform the virtual DOM before updating the real DOM in a batched way.

This document provides an introduction to NgRx, a library for managing application state in Angular applications using the Redux pattern. It discusses NgRx goals like organizing and managing state, communicating changes, and performance benefits. It also covers Redux principles like single source of truth, pure functions for state changes, and read-only state. The document demonstrates the basic NgRx pattern of actions, reducers, selectors, and effects. It provides examples of setting up NgRx in an Angular application and key NgRx concepts like actions, reducers, selectors, effects, immutable data, and smart/dumb components.

React is a JavaScript library for building user interfaces using reusable components. It is used to create single page applications that dynamically update the current page with new data from the server. React uses a component-based approach and one-way data binding to build interfaces simply and allow for easy testing. Key concepts in React include components, props, state, lifecycles, hooks, JSX, and the virtual DOM. Major companies using React include Facebook, Netflix, Instagram, and WhatsApp.

This Edureka tutorial on What Is React will help you in understanding the fundamentals of ReactJS and help you in building a strong foundation in React. This tutorial will help you learn the following topics: - What is JavaScript? - Why ReactJS? - What Is ReactJS? - Virtual DOM - ReactJS Applications

A brief and concise introduction to react REDUX. This is meant to be a walkthrough to understanding REDUX.

Explanation of the fundamentals of Redux with additional tips and good practices. Presented in the Munich React Native Meetup, so the sample code is using React Native. Additional code: https://github.com/nacmartin/ReduxIntro

What is React js? A better introduction to React. React (also known as ReactJs) is a JavaScript library.

Provide the primary concept about react js and redux. How react js is integrated with redux to solve the `sate management` for react js application.

Intro To React Native with Varun Vachhar OVERVIEW React Native introduces a new way to write native mobile apps. You can take everything that you know and love about React and apply it to native apps. Unlike hybrid apps, it gives you access to both native APIs and UI components. The application logic uses JavaScript whereas, the UI is fully native! It also brings the best of the web to native, things like – flexbox layout model, XMLHttpRequest, requestAnimationFrame, etc. OBJECTIVE To introduce the audience to React Native. Show how they can leverage their knowledge of web development to build native apps. TARGET AUDIENCE Developers familiar with React who are interested in building native mobile apps. ASSUMED AUDIENCE KNOWLEDGE Basic knowledge of React, ES6 and CSS. FIVE THINGS AUDIENCE MEMBERS WILL LEARN What is React Native How it is an extension of hybrid How to use polyfills to leverage the best of the web while getting native performance How to debug React Native apps How to use Flexbox and CSS for styling a React Native app

React Hooks - We start with basics of ReactJS - a javascript library to manage UI. Then, we dive into hooks, the why, what and how parts.

This document provides an overview and introduction to React JS. It discusses that React JS is a JavaScript library developed by Facebook for building user interfaces and reusable UI components. It encourages creation of reusable components that present data that changes over time. The document also covers React JS features, architecture, components, best practices, pros and cons, and provides useful links for examples and environment setup.

Intro to Spring Boot and Angular presentation from JHipster 4 Workshop on Connect.Tech 2017. To simplify development and deployment, you want everything in the same artifact, so you put on your Angular app "inside" and your Spring Boot app, right? But what if you could create your Angular app as a standalone app and make cross-origin requests to your API? This session shows how to develop with Java 8, Spring Boot, Angular 4, and TypeScript. You'll learn how to create REST endpoints with Spring MVC, Spring Data REST, configure Spring Boot to allow CORS, and create an Angular app to display its data.

NGRX is an implementation of the Redux pattern for Angular applications that uses RxJS. It provides a centralized store for application state that is only updated through pure functions called reducers in response to actions. The key advantages are having organized state management, easier debugging by tracking state changes, and global access to current application data from anywhere. It includes libraries like @ngrx/store for the central store, @ngrx/effects for handling side effects, and @ngrx/store-devtools for debugging state changes. Actions describe events that dispatch data to reducers, which pure functions that take the previous state and an action to return a new state. This supports a predictable and traceable unidirectional data flow

React is a JavaScript library for building user interfaces that allows developers to create reusable UI components. It uses a virtual DOM for efficient re-rendering when data changes, and can render components on both the client-side and server-side. Key aspects of React include JSX syntax that resembles HTML, the component model for building encapsulated components, and tools like NPM, Webpack and Babel that help support React projects.

During the last years we have seen the evolution of Xamarin Forms that has brought new improvements, as well as great contributions from the community. This implies that perhaps in the way that some things were done some time ago, there are currently better and simpler ways of doing it. In this talk we will discuss best practices when programming in Xamarin Forms, as well as architecture, dependency injection, performance, use of plugins and components, among others.

This document summarizes a presentation about React Native given at DroidKaigi 2017. It discusses how React Native allows building native Android and iOS apps using React by rendering UI components to native platform views. It describes how React Native maps React components to native platform views, implements native modules to access platform features, and uses the JavaScript bridge to allow calling native code from JavaScript. It highlights how React Native enables writing once and deploying to both Android and iOS with shared JavaScript code.

Do you know how to create any component in ReactJS? This article will help you learn how to make components using ReactJS?

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.

Introduction to React in combination with Redux. Redux helps you to develop applications in a simple way while having features like time-travel available during development.

The document discusses building native components and modules for React Native applications. It provides guidance on creating native modules and components for both iOS and Android platforms. For native modules, it describes how to expose methods and properties to JavaScript. For native components, it explains how to create custom native views and expose their properties and events to React components.

Presentations includes following topics :- Introduction of ReactJS. Component workflow. State management and useful life-cycles. React hooks. Server Side Rendering.

This document provides an overview of React including: - React is a JavaScript library created by Facebook for building user interfaces - It uses virtual DOM to efficiently re-render components on updates rather than entire page - React supports ES6 features and uses classes, arrow functions, and other syntax - Popular tools for React include Create React App for setting up projects and React Dev Tools for debugging

This document provides an introduction to React and React Native. It begins with an overview of ReactJS, including its motivation as a library for building user interfaces and key concepts like components, the virtual DOM, JSX, immutability, and one-way data flow. It then covers React Native, explaining how it uses native components to render interfaces for mobile rather than HTML/CSS. The document concludes with exercises for creating basic React and React Native apps.

Since its 2013 release, React has brought a new way to design UI components in the world wide web. The same foundamentals have been taken to another important environment in our contemporary world: the mobile application. This month we'll see the philosophy behind React Native - learn once, write anywhere - and how this new framework helps new developers to build native apps using React.

This document provides an overview and introduction to React, a JavaScript library for building user interfaces. It discusses why React is used, how to set up a React environment, core React concepts like components, props, state, lifecycles and events. It also introduces React Native for building native mobile apps with React. The document emphasizes learning React through hands-on examples and practice.

This document provides an introduction to React and teaches how to build a basic React application. It outlines prerequisites like HTML, CSS, and JavaScript knowledge. The learning objectives are to explore React and JSX, create a React project, make components, and add styling. Key concepts covered include what JSX is, using components, and displaying dynamic data. Exercises guide setting up a project and component.

This document provides an introduction to React and teaches how to build a basic React application. It outlines prerequisites like HTML, CSS, and JavaScript knowledge. The learning objectives are to explore React and JSX, create a React project, make components, and add styling. Key concepts covered include what JSX is, how to create and render components, and displaying dynamic data. Exercises guide setting up a project and component.

The popularity of React Native Technology cannot be contained. The growing inclination of the app industry towards this cross-platform technology has triggered the curiosity of many domains. Therefore, we need to learn more about related development concepts. So today, let us learn the way to integrate Native Android App with React Native! React Native mobile app development is emerging out to be an exciting opportunity for businesses. It not only offers pocket-friendly choices, but it also reduces the development time. If you want to upheave your revenue funnel then connect with our experienced professionals who can guide you in the right direction.

This presentation contains basics of React which is presented at the Facebook Developer Circle: Colombo November meetup.

This document discusses mobile development using React Native, which allows building native mobile apps using JavaScript and React. It introduces React Native, how to get started with a simple app, and common React Native components. It also covers the development stack, including using Webpack, Babel, Flux architecture, and building/packaging the app for deployment. React Native enables building fully native mobile apps that can access native UI components and APIs using React and JavaScript.

This document discusses developing client, server, and mobile applications with React. It introduces React Top-Level API vs JSX and how to create reusable Widget components in React that can render different content types specified by a string property. Widgets are demonstrated as cards with optional close and option buttons that can trigger callback handlers. The content is split across multiple nested components for reusability and extensibility. Similar capabilities in Angular are discussed using directives.

This document describes how to build a simple todo application with React and Material UI. It discusses setting up the project structure with components, contexts, reducers and custom hooks to manage application state. Key aspects covered include using contexts to pass data between components, a reducer to manage todo data in local storage, and custom hooks for form inputs, toggling and local storage. The main components built are TodoApp, TodoList, TodoForm and Todo. This provides a fully functional todo app implementing modern React practices.

First Project Components React JSX syntactic-sugar for JS State vs. Props Component Events - Mounting Component Events - Updating Component Events - Unmounting Virtual DOM Reconciliation Flux https://www.adroitlogic.com https://developer.adroitlogic.com

This document provides an overview and comparison of different approaches for building mobile applications, including native and hybrid approaches. It discusses React Native specifically and its advantages, such as allowing developers to build mobile apps for Android and iOS using React with a single codebase, while still providing access to native platform features and a native user experience. It also covers topics like navigation, testing, publishing apps, and some challenges with React Native like dealing with JavaScript errors in production.

Are you a backend developer that’s being pushed into front end development? Are you frustrated with all JavaScript frameworks and build tools you have to learn to be a good UI developer? If so, this session is for you! We’ll explore the tools of the trade for frontend development (npm, yarn, Gulp, Webpack, Yeoman) and learn the basics of HTML, CSS, and JavaScript. This presentation dives into the intricacies of Bootstrap, Material Design, ES6, and TypeScript. Finally, after getting you up to speed with all this new tech, I'll show how it can all be found and integrated through the fine and dandy JHipster project.

The document discusses Atomic Design principles and how they can be applied to React Native applications. It describes building user interfaces using atoms, molecules and organisms, then combining these into pages. It provides examples of templates for mobile, tablet and web pages, and how pages are constructed by passing components to templates and handling navigation.

長岡IT開発者勉強会で発表しました

This document discusses FOSS4G 2018 Hokkaido conference, GIS applications in agriculture and IoT, and technologies for working with geospatial data like GeoJSON and Shapefiles. It provides example coordinates for locations in Japan, links to agricultural GIS resources, and mentions hiring for GIS roles involving IoT and agriculture. The document explores open source tools for converting between geospatial formats and developing GIS applications using TypeScript and Node.js with TurfJS.

CSS in JS allows defining styles for React components using JavaScript objects and functions instead of traditional CSS files. Styles can be defined as JavaScript objects and applied to components using the style prop. This avoids issues with CSS specificity, scoping, and separation of technologies. Styles defined in JS are also minified and cached by React for improved performance. Frameworks like Aphrodite provide an API for defining styles in JS and conditionally applying styles based on media queries and pseudo-classes for both React web and native applications.

DroidKaigi2016で講演したAndroid Lintについての資料です

NDS meetup 9でしゃべりました http://nds-meetup.connpass.com/event/24605/

2015年4月25日に行われたDroidKaigiでの発表資料です。

第40回 長岡IT開発者勉強会 http://nagaoka.techtalk.jp/no40 で発表した資料です。 講演内容の全文は↓にあります http://qiita.com/Nkzn/items/b31829890ba83a7fd618

NDS in Niigata #4 http://nds-meetup.connpass.com/event/10998/ 2014年3月のKotlin話の続きみたいなものです。

2014年5月17日に開催された「エフスタ!! in 会津 〜やっててよかったこの仕事〜」で発表したスライドです。 http://kokucheese.com/event/index/167740/

http://nagaoka.techtalk.jp/no36

http://nagaoka.techtalk.jp/no36

2013年9月1日にJELLY JELLY CAFE NIIGATAで行われた「コワーキングビジネスフォーラム in NIIGATA 2013」で講演した資料です。

Niigata.rbの会場になれなかったお詫びと、勉強会に使える会場ができたお話。

新潟オープンソースセミナー2012

JSON日の金曜日#1での発表です http://atnd.org/events/29927

Password Rotation in 2024 is still Relevant

Slide of the tutorial entitled "Paradigm Shifts in User Modeling: A Journey from Historical Foundations to Emerging Trends" held at UMAP'24: 32nd ACM Conference on User Modeling, Adaptation and Personalization (July 1, 2024 | Cagliari, Italy)

Recent advancements in the NIST-JARVIS infrastructure: JARVIS-Overview, JARVIS-DFT, AtomGPT, ALIGNN, JARVIS-Leaderboard

Presented at Gartner Data & Analytics, London Maty 2024. BT Group has used the Neo4j Graph Database to enable impressive digital transformation programs over the last 6 years. By re-imagining their operational support systems to adopt self-serve and data lead principles they have substantially reduced the number of applications and complexity of their operations. The result has been a substantial reduction in risk and costs while improving time to value, innovation, and process automation. Join this session to hear their story, the lessons they learned along the way and how their future innovation plans include the exploration of uses of EKG + Generative AI.

This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator. Link to presentation recording and slides: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/ Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.

Everything that I found interesting last month about the irresponsible use of machine intelligence

Jindong Gu, Zhen Han, Shuo Chen, Ahmad Beirami, Bailan He, Gengyuan Zhang, Ruotong Liao, Yao Qin, Volker Tresp, Philip Torr "A Systematic Survey of Prompt Engineering on Vision-Language Foundation Models" arXiv2023 https://arxiv.org/abs/2307.12980

Java Servlet programs

YOUR RELIABLE WEB DESIGN & DEVELOPMENT TEAM — FOR LASTING SUCCESS WPRiders is a web development company specialized in WordPress and WooCommerce websites and plugins for customers around the world. The company is headquartered in Bucharest, Romania, but our team members are located all over the world. Our customers are primarily from the US and Western Europe, but we have clients from Australia, Canada and other areas as well. Some facts about WPRiders and why we are one of the best firms around: More than 700 five-star reviews! You can check them here. 1500 WordPress projects delivered. We respond 80% faster than other firms! Data provided by Freshdesk. We’ve been in business since 2015. We are located in 7 countries and have 22 team members. With so many projects delivered, our team knows what works and what doesn’t when it comes to WordPress and WooCommerce. Our team members are: - highly experienced developers (employees & contractors with 5 -10+ years of experience), - great designers with an eye for UX/UI with 10+ years of experience - project managers with development background who speak both tech and non-tech - QA specialists - Conversion Rate Optimisation - CRO experts They are all working together to provide you with the best possible service. We are passionate about WordPress, and we love creating custom solutions that help our clients achieve their goals. At WPRiders, we are committed to building long-term relationships with our clients. We believe in accountability, in doing the right thing, as well as in transparency and open communication. You can read more about WPRiders on the About us page.

This presentation, delivered at the Postgres Bangalore (PGBLR) Meetup-2 on June 29th, 2024, dives deep into connection pooling for PostgreSQL databases. Aakash M, a PostgreSQL Tech Lead at Mydbops, explores the challenges of managing numerous connections and explains how connection pooling optimizes performance and resource utilization. Key Takeaways: * Understand why connection pooling is essential for high-traffic applications * Explore various connection poolers available for PostgreSQL, including pgbouncer * Learn the configuration options and functionalities of pgbouncer * Discover best practices for monitoring and troubleshooting connection pooling setups * Gain insights into real-world use cases and considerations for production environments This presentation is ideal for: * Database administrators (DBAs) * Developers working with PostgreSQL * DevOps engineers * Anyone interested in optimizing PostgreSQL performance Contact info@mydbops.com for PostgreSQL Managed, Consulting and Remote DBA Services

Support en anglais diffusé lors de l'événement 100% IA organisé dans les locaux parisiens d'Iguane Solutions, le mardi 2 juillet 2024 : - Présentation de notre plateforme IA plug and play : ses fonctionnalités avancées, telles que son interface utilisateur intuitive, son copilot puissant et des outils de monitoring performants. - REX client : Cyril Janssens, CTO d’ easybourse, partage son expérience d’utilisation de notre plateforme IA plug & play.

The integration of programming into civil engineering is transforming the industry. We can design complex infrastructure projects and analyse large datasets. Imagine revolutionizing the way we build our cities and infrastructure, all by the power of coding. Programming skills are no longer just a bonus—they’re a game changer in this era. Technology is revolutionizing civil engineering by integrating advanced tools and techniques. Programming allows for the automation of repetitive tasks, enhancing the accuracy of designs, simulations, and analyses. With the advent of artificial intelligence and machine learning, engineers can now predict structural behaviors under various conditions, optimize material usage, and improve project planning.