Rust is a systems programming language that is fast, memory-efficient, and safe. It was created by Mozilla Research in 2010 and released in 2015. Rust uses a borrow checker to ensure memory safety at compile time without using garbage collection. It is suitable for writing system software, embedded applications, and web assembly. Rust aims to prevent common concurrency bugs and provides features like strong typing, pattern matching, and macros.
The document discusses various methods for sharing data between Angular components, including:
1) Parent to child components using @Input to pass data via templates.
2) Child to parent using @ViewChild and AfterViewInit lifecycle hook to access child component properties.
3) Child to parent using @Output and event emitters to emit data on user events like button clicks.
4) Between unrelated components using a shared service with RxJs Subjects to share stream of data between all components accessing the service.
The document discusses Node.js and asynchronous I/O. It explains that Node.js is an asynchronous event-driven JavaScript runtime that uses a single-threaded model with non-blocking I/O to handle high volumes of simultaneous connections efficiently. It also discusses how Node.js handles asynchronous operations using an event loop and callback functions instead of blocking operations.
ReactJS for Beginners provides an overview of ReactJS including what it is, advantages, disadvantages, typical setup tools, and examples of basic React code. Key points covered include:
- ReactJS is a JavaScript library for building user interfaces and is component-based.
- Advantages include high efficiency, easier JavaScript via JSX, good developer tools and SEO, and easy testing.
- Disadvantages include React only handling the view layer and requiring other libraries for full MVC functionality.
- Examples demonstrate basic components, properties, events, conditional rendering, and lists in ReactJS.
How to Develop your own in App-Purchase Service in OdooOdoo
This document discusses how to develop an in-app purchase (IAP) service in Odoo. It describes the normal service flow as: (1) a client requests a service, (2) the service provider checks if the client has enough credits and creates a transaction, (3) the service is provided, (4) the transaction is captured or cancelled, and (5) the client is notified. It also provides details on registering a service with Odoo IAP, developing the client-side Odoo app, using IAP helpers on the service-side, and testing the IAP integration.
- Angular modules help organize an application into blocks of related functionality. Modules declare components, directives, pipes and services that belong to that module.
- There are different types of modules like root modules, feature modules, and shared modules. The root module launches the app. Feature modules extend functionality. Shared modules contain reusable constructs.
- Modules can import and export specific constructs to make them available to other modules. Services declared in a module are singletons app-wide unless the module is lazy loaded. Core modules contain global services imported by the root module only.
Service workers allow you to control how network requests from web pages are handled. They run scripts in the background to intercept and handle fetch events, allowing web applications to work offline by responding with cached responses. Before service workers, AppCache was used but had limitations. The lifecycle of a service worker involves registration, installation, activation, and controlling pages. Common uses are caching assets, providing offline functionality, and handling network responses. Challenges include debugging failed installations and limitations on credentials and CORS requests. Service workers also enable push notifications and background sync functionality.
Http Service will help us fetch external data, post to it, etc. We need to import the http module to make use of the http service. Let us consider an example to understand how to make use of the http service.
.htaccess is a configuration file for use on web servers running the Apache Web Server software. When a .htaccess file is placed in a directory which is in turn 'loaded via the Apache Web Server', then the .htaccess file is detected and executed by the Apache Web Server software. These .htaccess files can be used to alter the configuration of the Apache Web Server software to enable/disable additional functionality and features that the Apache Web Server software has to offer. These facilities include basic redirect functionality, for instance if a 404 file not found error occurs, or for more advanced functions such as content password protection or image hot link prevention.
This document provides an overview and explanation of React Hooks. It introduces common Hooks like useState, useEffect, useReducer, and custom hooks. useState is used to add local state to functional components. useEffect is similar to component lifecycle methods and lets you perform side effects. useReducer is an alternative to useState for managing state in a single object. Custom hooks let you extract reusable logic and share it without changing components. The document also includes a FAQ addressing questions about hooks and class components.
Back in 2015, Square and Google collaborated to launch gRPC, an open source RPC framework backed by protocol buffers and HTTP/2, based on real-world experiences operating microservices at scale. If you build microservices, you will be interested in gRPC.
This webcast covers:
- a technical overview of gRPC
- use cases and applicability in your stack
- a deep dive into the practicalities of operationalizing gRPC
The document outlines an online training course for Angular 10 that covers fundamental concepts like TypeScript, Angular fundamentals, NgRx, server-side integration with Node and Express, Angular Material, PrimeNG, and a final e-commerce project. The 50-day, 100-hour course includes daily live and hands-on training, video lessons, project files, and lifetime access for 6000 INR or $85. Key topics include Angular architecture, components, routing, HTTP requests, reactive forms, state management with NgRx, REST APIs, authentication, and deployment.
These are the slides of the Node.js Crash Course meetup. More info about that meetup at https://www.meetup.com/life-michael/events/250889121/
CSS Selector in Selenium WebDriver | EdurekaEdureka!
(** Selenium Training: https://www.edureka.co/testing-with-selenium-webdriver **)
This ‘CSS Selector in Selenium’ PPT by Edureka helps you understand how this locator aids to identify elements on a web page. Topics to be covered in this PPT:
What are element locators
Different types of element locators
Introduction to CSS Selector
Syntax and basic commands
Demo
Selenium playlist: https://goo.gl/NmuzXE
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
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The document provides an introduction to React, a JavaScript library for building user interfaces. It discusses key React concepts like components, properties, state, one-way data flow, and JSX syntax. It also covers setting up a development environment with Create React App and shows how to create a basic React component with state. The target audience appears to be people new to React who want to learn the fundamentals.
This document provides an introduction and overview of Node.js, including what Node.js is, its architecture and basics, how to write "Hello World" programs in Node.js and Express, how to use modules, errors, middleware, routers, Mongoose and MongoDB for databases, and the MEAN stack. It also describes a tutorial for building a backend API with Node.js, Express, Mongoose and MongoDB.
State is managed within the component in which variables declared in function body. State can be changed. State can be accessed using “useState” Hook in functional components and “this.state” in class components. Hook is a new feature in react. To use this expression it’s essential to have good understanding of class components. State hold information that used for UI by browser.
https://www.ducatindia.com/javatraining/
This document provides an overview of Angular's template-driven and model-driven forms. It describes the key directives, classes, and interfaces used for building forms in Angular. It explains how to add validation, track form state, create custom validators, and tie forms to components and templates. The document also demonstrates how to set up two-way data binding between forms and models using directives like ngModel, ngFormControl, and ngForm.
The document provides an introduction to Gradle, an open source build automation tool. It discusses that Gradle is a general purpose build system with a rich build description language based on Groovy. It supports "build-by-convention" and is flexible and extensible, with built-in plugins for Java, Groovy, Scala, web and OSGi. The presentation covers Gradle's basic features, principles, files and collections, dependencies, multi-project builds, plugins and reading materials.
Service Workers is coming. Bring your own magic with the first programmable cache in your script, and more!
Presented at the GDG Korea DevFest 2014 on the 31st of May 2014: https://sites.google.com/site/gdgdevfestkorea2014/
Este documento describe diferentes opciones para migrar aplicaciones Forms/Reports a Oracle WebLogic 11g, incluyendo evolucionar a OWLS 11g, reingeniería J2EE (ADF), e integraciones SOA/BPM. También discute los beneficios de cada enfoque y cómo avanttic puede adecuarse a las necesidades específicas de cada proyecto de migración.
This document provides an overview of gRPC (Google Remote Procedure Call), including:
- RPC allows invoking functions on remote servers similarly to APIs. gRPC builds on this with features like HTTP/2, protocol buffers, and load balancing.
- Protocol buffers define the data structure and code can be generated for various languages. RPC uses protobufs which are machine-readable for security.
- gRPC has features like client/server streaming and duplex streaming in addition to traditional RPC implementations like RPC-XML and RPC-JSON.
Introduction to angular with a simple but complete projectJadson Santos
Angular is a framework for building client applications in HTML, CSS and TypeScript. It provides best practices like modularity, separation of concerns and testability for client-side development. The document discusses creating an Angular project, generating components, binding data, using directives, communicating with backend services, routing between components and building for production. Key steps include generating components, services and modules, binding data, calling REST APIs, defining routes and building the app.
- Angular modules help organize an application into blocks of related functionality. Modules declare components, directives, pipes and services that belong to that module.
- There are different types of modules like root modules, feature modules, and shared modules. The root module launches the app. Feature modules extend functionality. Shared modules contain reusable constructs.
- Modules can import and export specific constructs to make them available to other modules. Services declared in a module are singletons app-wide unless the module is lazy loaded. Core modules contain global services imported by the root module only.
Service workers allow you to control how network requests from web pages are handled. They run scripts in the background to intercept and handle fetch events, allowing web applications to work offline by responding with cached responses. Before service workers, AppCache was used but had limitations. The lifecycle of a service worker involves registration, installation, activation, and controlling pages. Common uses are caching assets, providing offline functionality, and handling network responses. Challenges include debugging failed installations and limitations on credentials and CORS requests. Service workers also enable push notifications and background sync functionality.
Http Service will help us fetch external data, post to it, etc. We need to import the http module to make use of the http service. Let us consider an example to understand how to make use of the http service.
.htaccess is a configuration file for use on web servers running the Apache Web Server software. When a .htaccess file is placed in a directory which is in turn 'loaded via the Apache Web Server', then the .htaccess file is detected and executed by the Apache Web Server software. These .htaccess files can be used to alter the configuration of the Apache Web Server software to enable/disable additional functionality and features that the Apache Web Server software has to offer. These facilities include basic redirect functionality, for instance if a 404 file not found error occurs, or for more advanced functions such as content password protection or image hot link prevention.
This document provides an overview and explanation of React Hooks. It introduces common Hooks like useState, useEffect, useReducer, and custom hooks. useState is used to add local state to functional components. useEffect is similar to component lifecycle methods and lets you perform side effects. useReducer is an alternative to useState for managing state in a single object. Custom hooks let you extract reusable logic and share it without changing components. The document also includes a FAQ addressing questions about hooks and class components.
Back in 2015, Square and Google collaborated to launch gRPC, an open source RPC framework backed by protocol buffers and HTTP/2, based on real-world experiences operating microservices at scale. If you build microservices, you will be interested in gRPC.
This webcast covers:
- a technical overview of gRPC
- use cases and applicability in your stack
- a deep dive into the practicalities of operationalizing gRPC
The document outlines an online training course for Angular 10 that covers fundamental concepts like TypeScript, Angular fundamentals, NgRx, server-side integration with Node and Express, Angular Material, PrimeNG, and a final e-commerce project. The 50-day, 100-hour course includes daily live and hands-on training, video lessons, project files, and lifetime access for 6000 INR or $85. Key topics include Angular architecture, components, routing, HTTP requests, reactive forms, state management with NgRx, REST APIs, authentication, and deployment.
These are the slides of the Node.js Crash Course meetup. More info about that meetup at https://www.meetup.com/life-michael/events/250889121/
CSS Selector in Selenium WebDriver | EdurekaEdureka!
(** Selenium Training: https://www.edureka.co/testing-with-selenium-webdriver **)
This ‘CSS Selector in Selenium’ PPT by Edureka helps you understand how this locator aids to identify elements on a web page. Topics to be covered in this PPT:
What are element locators
Different types of element locators
Introduction to CSS Selector
Syntax and basic commands
Demo
Selenium playlist: https://goo.gl/NmuzXE
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
The document provides an introduction to React, a JavaScript library for building user interfaces. It discusses key React concepts like components, properties, state, one-way data flow, and JSX syntax. It also covers setting up a development environment with Create React App and shows how to create a basic React component with state. The target audience appears to be people new to React who want to learn the fundamentals.
This document provides an introduction and overview of Node.js, including what Node.js is, its architecture and basics, how to write "Hello World" programs in Node.js and Express, how to use modules, errors, middleware, routers, Mongoose and MongoDB for databases, and the MEAN stack. It also describes a tutorial for building a backend API with Node.js, Express, Mongoose and MongoDB.
State is managed within the component in which variables declared in function body. State can be changed. State can be accessed using “useState” Hook in functional components and “this.state” in class components. Hook is a new feature in react. To use this expression it’s essential to have good understanding of class components. State hold information that used for UI by browser.
https://www.ducatindia.com/javatraining/
This document provides an overview of Angular's template-driven and model-driven forms. It describes the key directives, classes, and interfaces used for building forms in Angular. It explains how to add validation, track form state, create custom validators, and tie forms to components and templates. The document also demonstrates how to set up two-way data binding between forms and models using directives like ngModel, ngFormControl, and ngForm.
The document provides an introduction to Gradle, an open source build automation tool. It discusses that Gradle is a general purpose build system with a rich build description language based on Groovy. It supports "build-by-convention" and is flexible and extensible, with built-in plugins for Java, Groovy, Scala, web and OSGi. The presentation covers Gradle's basic features, principles, files and collections, dependencies, multi-project builds, plugins and reading materials.
Service Workers is coming. Bring your own magic with the first programmable cache in your script, and more!
Presented at the GDG Korea DevFest 2014 on the 31st of May 2014: https://sites.google.com/site/gdgdevfestkorea2014/
Este documento describe diferentes opciones para migrar aplicaciones Forms/Reports a Oracle WebLogic 11g, incluyendo evolucionar a OWLS 11g, reingeniería J2EE (ADF), e integraciones SOA/BPM. También discute los beneficios de cada enfoque y cómo avanttic puede adecuarse a las necesidades específicas de cada proyecto de migración.
This document provides an overview of gRPC (Google Remote Procedure Call), including:
- RPC allows invoking functions on remote servers similarly to APIs. gRPC builds on this with features like HTTP/2, protocol buffers, and load balancing.
- Protocol buffers define the data structure and code can be generated for various languages. RPC uses protobufs which are machine-readable for security.
- gRPC has features like client/server streaming and duplex streaming in addition to traditional RPC implementations like RPC-XML and RPC-JSON.
Introduction to angular with a simple but complete projectJadson Santos
Angular is a framework for building client applications in HTML, CSS and TypeScript. It provides best practices like modularity, separation of concerns and testability for client-side development. The document discusses creating an Angular project, generating components, binding data, using directives, communicating with backend services, routing between components and building for production. Key steps include generating components, services and modules, binding data, calling REST APIs, defining routes and building the app.
[React-Native-Seoul] React-Native 초심자를 위한 실습위주의 간단한 소개 및 구현법 안내Tae-Seong Park
## React-Native-Seoul meetup ##
- React-Native 초심자를 위한 실습위주의 간단한 소개 및 구현법 안내
## 발표자 ##
박태성
아이디어샘 R&D Dev Specialist
[email protected]
@geoseong by Slack
Create-React-App으로 SSR을 구현하며 배운 점 (feat. TypeScript)LanarkSeung
프로덕션 환경에서 클라이언트 사이드 렌더링을 고집하기란 힘든 일입니다. 서버를 통해 웹사이트를 제공하면서도 React의 편리함을 누리려면 서버 사이드 렌더링(SSR)을 구현해야 하는데요. Create-React-App을 그대로 유지하면서 SSR을 구현하는 과정을 보여드리고자 합니다. TypeScript로도 가능합니다!
모티브 :
웹 페이지에서 일어나는 사용자의 단일 액션에 대응하는 일련의 프로세스를 하나의 클래스에서 구현한다. 일련의 프로세스는 사용자가 서버에 요청을 하기 위해서 클릭을 한다거나 입력을 하고 요청을 하고 그에 따른 서버 측에서 처리가 이루어지고 처리 결과를 다시 사용자의 브라우저에 통보를 하고 브라우저는 결과를 통해 사용자에게 결과를 인식 시키는 일련의 작업을 말합니다.
목적 및 장점 :
1. CRUD(Create, Read, Update, Delete) 인터랙션에 대한 처리와 시스템 장애에 대한 빠른 문제 파악과 대응
조건 :
1. XHR Wrapped클래스가 존재하여야 한다. (prototype.js, dojo, jQuery, etc)
2. XHR 오브젝트를 이용한 데이터 처리가 있어야 한다.
3. 요청을 위한 단계와 응답에 대한 처리 단계가 간단하고 명료해야 한다.
제약 :
1. 복잡한 UI 처리 및 CRUD이외의 처리가 다소 병행되어 진다면 클래스 혹은 객체가 무거워질 수 있다.
단점 :
1. 특정한 인터랙션 위한 패턴으로 확장(extend) 및 소스 재사용 면에서 용이하지 못함
SK Planet에서 주최한 TechPlanet 2012에서 발표했던 자료입니다. 소셜 큐레이션 서비스에 대한 간략한 소개와 관련 기술, 향후 전망 등을 담고 있습니다.
! 정정합니다. 32페이지의 pypi install ... 은 pip install 이 올바른 코드입니다.
2. 뉴욕 기반 스타트업인 에서 프론트엔드 개발자로 일하고
있습니다. 그 전에는 에서 여러 서비스와 프로젝트에
참여했습니다. 자바스크립트/웹 개발 관련 서적 6권을 번역했습니다.
자바스크립트 강의를 꾸준히 진행하고 있습니다. 특허도 몇 건 있습니다.
Nodepad++, FPDF, Brackets, code.org, io.js 등의
한국어 번역에도 참여했습니다. 블로그(taegon.kim)와
@taggon을 통해 연락할 수 있습니다.
39. : 메모리 상에 DOM 구성. DOM 비교를 통해 업데이트 된 부분만 갱신.
Virtual DOM
일관성이 있다.
: 브라우저에 의존적이지 않다.
테스트하기 쉽다.
: 순수 JS만으로 구현.
빠르다.
DOM 비교 알고리즘
: http://calendar.perfplanet.com/2013/diff/ 참고
40. 단방향 데이터 흐름
이해하기 쉽다.
: 데이터의 흐름이 일방 통행이라 이해하기가 쉽다. 상위 컴포넌트 → 하위 컴포넌트
하위 컴포넌트의 변화는 이벤트를 통해 감지한다.
: 상위 컴포넌트는 하위 컴포넌트에 이벤트를 추가해 이벤트 감지
41. var TodoList = React.createClass({
render : function(){
return (
<ul>
{this.props.items.map(function(item, idx){
return <TodoItem key={idx} text={item.text} onChange={this.props.onToggle} />;
})}
</ul>
);
}
});
var TodoApp = React.createClass({
render : function(){
return (
<section>
<h1>todos</h1>
<TodoList items={this.state.items} onToggle={this.onToggle} />
</section>
);
}
});
단방향 데이터 흐름
props = 상위 컴포넌트에서 받은 값(수정 불가)
states = 자기 자신이 가지고 있는 값(수정 가능)
42. var TodoList = React.createClass({
render : function(){
return (
<ul>
{this.props.items.map(function(item, idx){
return <TodoItem key={idx} text={item.text} onChange={this.props.onToggle} />;
})}
</ul>
);
}
});
var TodoApp = React.createClass({
render : function(){
return (
<section>
<h1>todos</h1>
<TodoList items={this.state.items} onToggle={this.onToggle} />
</section>
);
}
});
단방향 데이터 흐름
이벤트는 아래에서 위로 발생한다.
43. 동형 자바스크립트 Isomorphic JavaScript
동형(同形) = 같은 모양
클라이언트와 서버가 같은 코드를 공유한다.
Client-side Server-side-
51. 오늘 살펴볼 내용
ReactJS 소개와 특징
간단한 ReactJS 사용법
동형(同形) 자바스크립트 Isomorphic JavaScript
... One more thing!
52. 비슷한 컨셉은 이미 많습니다.
AngularJS의 Directive
HTML5의 Web Component
PolymerJS
X-tags, SkateJS, RiotJS ...
53. React는 그 이상입니다.
React Native:
React를 사용해 네이티브 모바일 앱 작성
e.g.) Facebook Groups
React Canvas:
React를 사용해 DOM 대신 Canvas에 엘리먼트 표현
54. React Native
Mobile OS의 네이티브 UI를 JS로 조작
별도 쓰레드에서 동작하는 JS와 비동기 통신
컴포넌트 종류는 다르지만 쓰던 React 방식 그대로
공식 웹 사이트 : http://native.reactjs.com
55. React Native
React.js Conf 2015 - A Deep Dive into React Native | https://youtu.be/7rDsRXj9-cU?t=3m26s