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@ManfredSteyer Advancing into new areas with Angular Elements & Ivy Manfred Steyer SOFTWAREarchitekt.at ManfredSteyer

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@ManfredSteyer

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@ManfredSteyer [Igor Minar, Angular Connect 2018 Keynote]

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@ManfredSteyer

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@ManfredSteyer Angular Elements

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@ManfredSteyer Web Components

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@ManfredSteyer Possibilities Component Libraries Enriching existing Apps CMS- Integration Dynamic Loading

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@ManfredSteyer Contents 1) Web Components 2) Angular Elements 3) Ivy

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@ManfredSteyer About me… • Manfred Steyer • SOFTWAREarchitekt.at • Angular Trainings and Consultancy • Google Developer Expert (GDE) • External Angular Team Member Page ▪ 9 Manfred Steyer Public: Frankfurt, Stuttgart, Vienna In-House: everywhere http://softwarearchitekt.at/workshops

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@ManfredSteyer 1) Web Components

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@ManfredSteyer Framework independent Components

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@ManfredSteyer Standards Templates HTML Imports Custom Elements Shadow DOM

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@ManfredSteyer Usage

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@ManfredSteyer DEMO 1]

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@ManfredSteyer All this can be polyfilled down to IE11 (more or less)

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@ManfredSteyer Polyfill

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@ManfredSteyer Selected Polyfills • webcomponents-loader.js • Loads Polyfills on demand • Custom Elements • Shadom DOM • Templates • native-shim.js • Needed for browsers that DO support polyfills • When downleveled to ES5 • Alternative: Differential Loading (providing ES5 + ES2015 bundles)

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@ManfredSteyer 2) Angular Elements

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@ManfredSteyer Angular Elements Wrap Angular Components Expose Custom Elements

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@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent] }) export class DateModule { }

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@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent] }) export class DateModule { }

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@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent] }) export class DateModule { constructor(private injector: Injector) { } }

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@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent] }) export class DateModule { constructor(private injector: Injector) { const DateElement = createCustomElement( DateComponent, { injector: this.injector }); customElements.define('date-picker', DateElement); } }

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@ManfredSteyer DEMO 2]

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@ManfredSteyer Bundle Custom Element 1 Libraries: Angular, RxJS, …

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@ManfredSteyer 3) Ivy (Angular 8)

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@ManfredSteyer Angular Compiler HTML Template JavaScript Angular Compiler

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@BASTAcon & @ManfredSteyer Ivy New Compiler/ View Engine More treeshakable Code No Breaking Changes Public with Angular 8

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@BASTAcon & @ManfredSteyer [Miško Hevery, ngconf 2018 Keynote]

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@BASTAcon & @ManfredSteyer

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@ManfredSteyer Angular Elements + Ivy + Tree Shaking* Custom Element 1 „Runtime“ * UI-centric code

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@ManfredSteyer DEMO 3]

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@ManfredSteyer

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@ManfredSteyer Where Ivy can help ✓ Widgets based on @angular/core, @angular/common  Libs like @angular/forms or @angular/router

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@ManfredSteyer Roadmap (details can change) • Ivy behind a flag • Try it out! Angular 8 (Spring 2019) • Ivy by default • No breaking changes Angular 9 (Fall 2019)

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@ManfredSteyer More on SOFTWAREarchitekt.at

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@ManfredSteyer Summary Angular: full fledged SPAs Angular Elements: Lightweight Scenarios Widgets CMS Integration Enriching Existing Applications Ivy: Better Treeshakability

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@ManfredSteyer Contact and Downloads [mail] [email protected] [web] SOFTWAREarchitekt.at [twitter] ManfredSteyer d http://softwarearchitekt.at/workshops Slides & Examples