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Advancing into new areas with Angular Elements ...
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Manfred Steyer
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February 25, 2019
Programming
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Advancing into new areas with Angular Elements & Ivy
Manfred Steyer
PRO
February 25, 2019
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Transcript
@ManfredSteyer Advancing into new areas with Angular Elements & Ivy
Manfred Steyer SOFTWAREarchitekt.at ManfredSteyer
@ManfredSteyer
@ManfredSteyer [Igor Minar, Angular Connect 2018 Keynote]
@ManfredSteyer
@ManfredSteyer Angular Elements
@ManfredSteyer Web Components
@ManfredSteyer Possibilities Component Libraries Enriching existing Apps CMS- Integration Dynamic
Loading
@ManfredSteyer Contents 1) Web Components 2) Angular Elements 3) Ivy
@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
@ManfredSteyer 1) Web Components
@ManfredSteyer Framework independent Components
@ManfredSteyer Standards Templates HTML Imports Custom Elements Shadow DOM
@ManfredSteyer Usage <script src="my-bundle.js"></script> <date-picker min="0" max="100"></date-picker>
@ManfredSteyer DEMO 1]
@ManfredSteyer All this can be polyfilled down to IE11 (more
or less)
@ManfredSteyer Polyfill
@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)
@ManfredSteyer 2) Angular Elements
@ManfredSteyer Angular Elements Wrap Angular Components Expose Custom Elements
@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent]
}) export class DateModule { }
@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent]
}) export class DateModule { }
@ManfredSteyer Angular Elements @NgModule({ imports: [BrowserModule], declarations: [DateComponent], entryComponents: [DateComponent]
}) export class DateModule { constructor(private injector: Injector) { } }
@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); } }
@ManfredSteyer DEMO 2]
@ManfredSteyer Bundle Custom Element 1 Libraries: Angular, RxJS, …
@ManfredSteyer 3) Ivy (Angular 8)
@ManfredSteyer Angular Compiler HTML Template JavaScript Angular Compiler
@BASTAcon & @ManfredSteyer Ivy New Compiler/ View Engine More treeshakable
Code No Breaking Changes Public with Angular 8
@BASTAcon & @ManfredSteyer [Miško Hevery, ngconf 2018 Keynote]
@BASTAcon & @ManfredSteyer
@ManfredSteyer Angular Elements + Ivy + Tree Shaking* Custom Element
1 „Runtime“ * UI-centric code
@ManfredSteyer DEMO 3]
@ManfredSteyer
@ManfredSteyer Where Ivy can help ✓ Widgets based on @angular/core,
@angular/common Libs like @angular/forms or @angular/router
@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)
@ManfredSteyer More on SOFTWAREarchitekt.at
@ManfredSteyer Summary Angular: full fledged SPAs Angular Elements: Lightweight Scenarios
Widgets CMS Integration Enriching Existing Applications Ivy: Better Treeshakability
@ManfredSteyer Contact and Downloads [mail] manfred.steyer@SOFTWAREarchitekt.at [web] SOFTWAREarchitekt.at [twitter] ManfredSteyer
d http://softwarearchitekt.at/workshops Slides & Examples