Use Angular for better React apps

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Use Angular for better React apps Martin Hochel @martin_hotell FrontendCon, PL

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Martin Hochel Principal SE, GDE WEB Prague / Czech Republic @martin_hotell medium.com/@martin_hotell github.com/hotell

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What I like about Angular

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What I like about Angular Official style guides Architecture DI TypeScript guarantees Tooling Very tasty!

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What I dislike about Angular

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What I dislike about Angular Component model Angular modules Proprietary DSL + HTML like templates Change Detection / Dirty checking

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What I like about React

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What I like about React Simple/Robust Component model It’s just javascript (functions and classes) #dealWithIt Testability Mature / Industry standard Very tasty!

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What I dislike about React

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What I dislike about React No official style-guides No official libraries - 200 routers, 100 state management libs… TypeScript ? eh? Flow? Maybe.Just.Nothing ?

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Finding the ultimate solution

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ReAnctular

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Using Angular /good parts/ for better React

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Episode I The TypeScript Menace

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Episode I: TypeScript Setup yarn add -D typescript yarn add -D @types/{react,react-dom} yarn tsc --init --moduleResolution node --jsx react --module ESNext --lib dom,es2015

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Episode I: React API + Type safety + DX - Component - Props DEMO

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Episode II Attack of the Style Guides

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Episode II: Style guides Do Consider Avoid Why?

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Episode II: Style guides - naming (symbols/file names) DO: hero-list.tsx class HeroList extends Component { } WHY? readable file names. e.g MyHalfFixedDedupedDirResolver vs my-half-fixed-deduped-dir-resolver CONSIDER: ..ts?x hero.service.ts class HeroService {} counter.hoc.ts function withCounter() counter.hook.ts function useCounter() AVOID: HeroList.tsx

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Episode II: Style guides - Application structure DO: LIFT Locate Identify Flat T-Dry Root Shared Core Feature

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Episode II: Style guides/patterns - moar https://medium.com/@martin_hotell

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Episode III Revenge of the DI

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Episode III: Angular DI @Injectable() class HeroService {} constructor injection

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Episode III: React DI React.createContext(value) Provider Consumer Provider Consumer

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Episode III: Angular DI without Angular Injection-js (4kb)

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@martin_hotell/rea-di (1.6kb) Episode III: Angular DI with React DEMO

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Episode IV A new State management hope

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Episode IV: Angular vs React State @Component() class CounterComponent { count = 0 after = 3 } @Injectable() class CounterService { count = 0 after = 3 } class Counter extends Component { state = {count:0} }

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Episode IV: Stateful services in React import {Stateful, Injectable} from ‘@martin_hotell/rea-di’ @Injectable() class Service extends Stateful { state: T }

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Episode V The HttpClient strikes back

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Episode V: Angular vs React HttpClient @angular/common/http - provider - interceptors fetch ( low level ) Axios ( Angular 1 $http )

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Episode V: injectable Axios @martin_hotell/axios-http (0.8kb)

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Episode VI Return of the Router

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Static Router Config Absolute/Relative path Router Outlet Lazy loading Episode VI: Angular vs React router Declarative component routing Absolute path only handling of 404 / exact

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Episode VI: Angular like React router config @martin_hotell/rr-ear (0.8kb) DEMO OSS soon !

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Episode VII The Observable Awakens

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Episode VII: React with Observables YES WE CAN! WE EVEN SHOULD! DEMO

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Episode VIII The Last CLI/Schematic

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Episode VIII: The Last CLI/Schematic Angular CLI - Core - @angular-devkit/core - Architect - @angular-devkit/architect - @angular-devkit/architect-cli - Builder - @angular-devkit/build-webpack - Schematics - @angular-devkit/schematics - @angular-devkit/schematics-cli

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Episode VIII: Angular Schematics - ng new - scaffold new app - ng add - add 3rd party library and setup - ng upgrade - update core libraries - ng generate - generate.modify file based on schematic ng-new ng-add upgrade schematics

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Episode VIII: Just Schematics yarn schematics : @angular-devkit/schematics-cli @martin_hotell/my-schematics component functional-component hoc render-prop-component hook

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Episode VIII: Just Schematics schematics @martin_hotell/my-schematics:component ./heroes/hero /heroes/hero.tsx ===> class Hero extends Component { }

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Episode IX ??? WebComponents ???

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Episode IX: WebComponents - Angular Elements - SkateJS

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Summary Leverage the best parts of Angular within React Apps + type safety + common style guides / patterns + robust Dependency Injection + Reactivity via Observables + CLI / productivity / refactoring / updates = Enterprise Ready