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React tools for better Angular apps Martin Hochel @martin_hotell

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Hello Vikings ! ▪ @ngPartyCz meetup founder ▪ Author of ngMetadata ▪ Member of @skate_js, @ngParty ▪ ▪ Martin Hochel Principal SE, GDE Prague / Czech Republic @martin_hotell github.com/Hotell

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Fight !

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Fight leads to the dark side Twi r ne m a s

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We can be all friends !

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How ?

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Tools Architecture Libraries

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Baseline

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CLI Tools Libraries Architecture

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Disclaimer: Tombstones ahead sorry about that

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Tools

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Task runner/package manager

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Tools: task runner

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Tools: task runner

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Tools: package manager

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Formatting

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Tools: Formatting T li

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Tools: Formatting

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Tools: Formatting conflicts with linter

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Tools: Formatting - let robots do the work

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Unit Testing

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Unit Testing Kar Jas

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Unit testing

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Unit testing: add Jest to @angular/cli

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Unit testing: speed karma-chrome: 14.911s karma-phantomjs: 13.119s jest: 4.970s

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Unit testing: Jest - Snapshots

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Unit testing: Jest - Interactive watch mode

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Unit testing: Jest - much more awesomeness - Powerful mocking features ( ES2015 mo s, as s ) - Code coverage - 0CJS `jest --coverage` - Pluggable ( run Puppeteer with Jest ) - Huge ecosystem - jest-axe ( a11y ) - jest-images-snapshots

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E2E Testing

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E2E Testing Pro c Sel u

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E2E Testing A node.js tool to automate end-to-end web testing

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E2E Testing: add TestCafe to @angular/cli

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E2E demo

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E2E Testing: summary - TestCafe ( Fast, 100% reliable, just NodeJS ! ) - Windows, MacOS, Linux - Chrome, Firefox, Safari, Opera, Edge, IE, Custom - CI integration - TypeScript

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Components development/catalogue

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Components development

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Storybook

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Components dev: add Storybook to @angular/cli

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Storybook: write a Story

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Storybook: Component stories

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Tooling: Summary Tools Tools

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Architecture

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Components

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Components: architecture HOC f(C)=> C.f @Directive React.Component @Component CSS / CSS in JS Inline CSS render ( JSX ) Inline template Immutable props ChangeDetectionStrategy.OnPush

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Components: architecture Sta s om n Sta l o p t

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Vikings

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State Management ● Redux ● Epics for handling side effects ( Rx )

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State Management: side effects via Epic Component Reducer Action State Epic Service Server Action Actions in, Actions out Action

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Libraries

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Libraries: Redux

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Libraries: Epics

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Libraries: Axios

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Summary

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Summary - Common - Tools - Architecture - Libraries Kar Jas T li Pro c Sel u

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Better CLI Tools Libraries Architecture ● Immutable ● Reactive one way data flow

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Summary: OSS ● Starter ● Example app

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Summary: TODO ● Custom Angular CLI Schematics !

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Summary: BFF

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New Friends !

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Thank you ! Martin Hochel @martin_hotell