Getting Started with NgRx (Redux) Angular
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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.
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Trabalho remoto + Carreira Internacional em T.IGustavo Costa Este documento descreve a jornada do autor na área de Tecnologia da Informação, desde seus primeiros estágios em 2009 até seu trabalho remoto atual para empresas internacionais. Ele detalha como buscou experiência através de cursos, projetos de código aberto e ensinando outros, e como desenvolveu habilidades como comunicação e liderança. O autor também discute como aprender inglês o levou a empregos remotos no exterior e um aumento significativo na renda.
Angular Extreme Performance - V2
Angular Extreme Performance - V2Gustavo Costa The document discusses optimization techniques for Angular applications, with a focus on performance improvements in network and runtime aspects. Key strategies include ahead-of-time (AOT) compilation, lazy loading, tree shaking, and minimizing resource usage through techniques like minification and obfuscation. It also emphasizes the importance of tools like Webpack and Chrome Dev Tools in analyzing and improving application performance.
Google Calendar API - Getting Started
Google Calendar API - Getting StartedGustavo Costa 1) O documento discute como integrar o Google Calendar API em um aplicativo para fornecer funcionalidades de calendário
2) Ele explica os conceitos básicos do Google Calendar API como autenticação, estrutura de eventos, listagem e criação de eventos
3) Também fornece exemplos de código para ajudar a começar a usar a API
Angular Extreme Performance
Angular Extreme PerformanceGustavo Costa 1. O documento discute vários pilares para melhorar o desempenho de aplicações front-end, incluindo bundling, minificação, tree shaking, compilação à frente do tempo e precarregamento de módulos.
2. É explicada a diferença entre compilação no momento de execução e compilação à frente do tempo no Angular e seus benefícios para o desempenho.
3. Também são apresentadas outras técnicas como detecção de mudanças inteligente, uso de web workers e renderização do lado do servidor para melhorar
Angular - Um novo change detection
Angular - Um novo change detectionGustavo Costa O documento discute técnicas de detecção de mudanças no Angular, incluindo data binding, change detection e estratégias como OnPush. Explica como eventos, timers, HTTP e mutabilidade afetam a detecção de mudanças e como Zone.js e Observables podem ser usados para notificar o Angular e habilitar a detecção de mudanças de forma mais inteligente. Recomenda o uso de componentes de apresentação e container separados com imutabilidade e ChangeDetectionStrategy.OnPush para melhorar o desempenho.
Ionic 2 como ferramenta para desenvolvimento móvel
Ionic 2 como ferramenta para desenvolvimento móvelGustavo Costa O documento descreve o framework Ionic para desenvolvimento de aplicativos híbridos usando HTML, CSS e JavaScript. O Ionic une as plataformas Angular e Apache Cordova para permitir que desenvolvedores criem aplicativos móveis com tecnologias da web. O Ionic é popular devido à produtividade, reaproveitamento de código e custos mais baixos para desenvolvimento de aplicativos.
Angular.JS - Estado Atual
Angular.JS - Estado AtualGustavo Costa - O documento discute o estado atual do AngularJS, incluindo problemas de performance com data binding e escopo, e como resolvê-los.
- É sugerido minimizar watchers, usar ng-if em vez de ng-repeat quando possível e processar lógica no controller em vez de na view.
- O documento também discute as mudanças no Angular 2 e como preparar aplicações para o futuro usando TypeScript desde já.
Desenvolvendo APPs Com Angular.JS + Cordova
Desenvolvendo APPs Com Angular.JS + CordovaGustavo Costa O documento discute o desenvolvimento de aplicativos híbridos usando HTML5, Angular.JS e Chrome DevTools. Apresenta as vantagens e desvantagens dos aplicativos nativos e web, introduz o PhoneGap/Cordova para aplicativos híbridos e descreve como o Angular.JS funciona como um framework completo para aplicativos de página única.
Abra sua cabeça, apps híbridos - PhoneGap/Cordova
Abra sua cabeça, apps híbridos - PhoneGap/CordovaGustavo Costa O documento discute o desenvolvimento de aplicativos híbridos usando HTML5. Apresenta as vantagens dos aplicativos híbridos, como ser multiplataforma, ter uma curva de aprendizado fácil e acessar APIs nativas. Também discute frameworks como Cordova, PhoneGap, AngularJS e Ionic que podem ser usados para melhorar a performance de aplicativos híbridos.
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Getting Started with NgRx (Redux) Angular
- 2. Gustavo Costa Javascript, Angular, AngularJS, RxJS, Reactive Programming, Performance, GDG Organizer twitter.com/GustavoCostaW Translucent - CA linkedin.com/in/GustavoCostaW
- 3. State State View State Entity Data User Information
- 4. NgRx = + +
- 5. Redux goals Organizing state1 Managing state2 Communicate changes3
- 6. Why Redux? Communicate changes1 Cache Strategy2 Pure components3 Debugging4 Performance, OnPush5 Component communication6
- 7. Maybe you do not need it Your application is simple1 Your team is new to Angular2 Your team has a good state management pattern3
- 8. Redux Principles Redux Single source of truth Changes ONLY by pure functions (reducers) State is read ONLY and changed ONLY by actions
- 9. Component Action Reducer Selector Store (State) View Redux Pattern ADD_PRODUCT (click)=“addProduct(product)” Get the current State Set new State Component notified Updates the view
- 11. Actions
- 12. Reducer
- 13. Store (State)
- 14. Let’s start - https://ngrx.io npm install @ngrx/store --save1 StoreModule.forRoot(reducer);2 StoreModule.forFeature(‘featureName’, reducer);3
- 16. StoreModule.forFeature(reducer); forRoot(reducer) forFeature(‘products’, reducer) forFeature(‘cart’, reducer) forFeature(‘orders’, reducer) forFeature(‘customers’, reducer)
- 17. DevTools
- 18. Let’s the demo.
- 19. Immutable vs Mutable = Array Methods [].push(…) =1 [].concat(…) =2 [].filter(…) =3 [].map(…) =5 [].forEach() =6 […[], newItem] =7 [].shift(…) =4 [].splice(…) =8 MUTABLE IMMUTABLE IMMUTABLE MUTABLE IMMUTABLE MUTABLE IMMUTABLE MUTABLE
- 20. Smart and Dumb Comp
- 21. HTTP?
- 22. Component Action Reducer Selector Store (State) View Redux Pattern + Effects listening… ADD_PRODUCT (click)=“addProduct(product)” Get the current State Calls GET Component notified Updates the view @Effects Service (Ajax) ADD_PRODUCT Set new State Returns from Server ADD_PRODUCT_SUCCESS
- 23. @Effects
- 24. Flattening Strategies switchMap - 1 Cancels the current subscription/request and can cause race condition * Use for get requests or cancelable requests like searches concatMap - 2 Runs subscriptions/requests in order and is less performant * Use for get, post and put requests when order is important mergeMap - 3 Runs subscriptions/requests in parallel * Use for put, post and delete methods when order is not important exhaustMap - 4 Ignores all subsequent subscriptions/requests until it completes * Use for login when you do not want more requests until the initial one is complete
- 25. @Effects npm install @ngrx/effects --save1 EffectsModule.forRoot(reducer);2 EffectsModule.forFeature(‘featureName’, reducer);3
- 27. Typing
- 28. Typing
- 29. Typing
- 30. Typing
- 31. Typescript ❤
- 32. Typescript ❤
- 33. Selectors Provide a strongly typed API1 Reusable2 Memoized (cached)3 Encapsulate complex data transformations4