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ngular with Minko Gechev github.com/mgechev twitter.com/mgechev blog.mgechev.com as Integrated Development Platform

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Our Sponsor

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Inspirational thought about programming Agenda

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What is Angular

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core (zones, di, abstractions, etc.)

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renderer core (zones, di, abstractions, etc.)

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compiler renderer core (zones, di, abstractions, etc.)

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http compiler renderer core (zones, di, abstractions, etc.)

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forms http compiler renderer core (zones, di, abstractions, etc.)

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forms http compiler renderer core (zones, di, abstractions, etc.) router

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forms http compiler renderer core (zones, di, abstractions, etc.) router i18n

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forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade

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forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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PWA forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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Universal PWA forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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material 2 Universal PWA forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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CLI material 2 Universal PWA forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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language services CLI material 2 Universal PWA forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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angularfire2 language services CLI material 2 Universal PWA forms http compiler renderer core (zones, di, abstractions, etc.) router i18n ngUpgrade animations

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Integrated Development Platform

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on the other hand…

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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• Angular’s AoT compiler • TypeScript compiler • Testing • Unit testing • e2e testing • Coverage • Module loader • Bundler • Provides bundling and tree shaking • Linter • TypeScript and CSS • Minifier • Minification & deadcode elimination • Service workers management/generation Angular Tooling

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angular-cli

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ng new hello-world

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angular-cli • Quick bootstrap of projects • Generating: • Components • Services • Directives • Pipes • Support for progressive apps • Codelyzer • many others…

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angular-seed

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git clone https://github.com/mgechev/angular-seed

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angular-seed • TypeScript transpilation • Statically typed dev and prod builds • Extensible task configuration • Out of the box unit-testing • Test coverage • e2e testing with protractor • Codeyzer

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Angular’s Core

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@Component({ selector: 'toggle-button', template: '{{on}}', styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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@Component({ selector: 'toggle-button', template: '{{on}}', styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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@Component({ selector: 'toggle-button', template: '{{on}}', styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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@Component({ selector: 'toggle-button', template: '{{on}}', styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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Renderer

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“A set of abstract operations which can be specialized for a specific platform”

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“A set of abstract operations which can be specialized for a specific platform”

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Angular is platform agnostic

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“NativeScript 2.0 truly native mobile apps”

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“NativeScript 2.0 truly native mobile apps”

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Server-side rendering

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@Component({ selector: 'toggle-button', template: '{{on}}', styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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@Component({ selector: 'toggle-button', template: '{{on}}’, styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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@Component({ selector: 'toggle-button', template: '{{on}}', styles: ['button { width: 300px; }'] }) class ToggleButtonComponent { @ViewChild('btn') button; private on = false; constructor(private r: Renderer) {} toggle() { this.on = !this.on; this.on && this.r.setStyle(this.button, 'opacity', 1); !this.on && this.r.setStyle(this.button, 'opacity', 0.2); } } Pseudo code

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Compiler

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ToggleButtonComponent Compilation

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ToggleButtonComponent Compiler Compilation

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ToggleButtonComponent Compiler InternalComponent Compilation

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Pseudo code class InternalComponent { create() { this.btn = this.renderer.createElement('button'); this.localOn = this.context.on; this.renderer.setText(this.btn, this.localOn); } detectChanges() { if (this.localOn !== this.context.on) { this.localOn = this.context.on; this.renderer.setText(this.btn, this.localOn); } } }

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Pseudo code class InternalComponent { create() { this.btn = this.renderer.createElement('button'); this.localOn = this.context.on; this.renderer.setText(this.btn, this.localOn); } detectChanges() { if (this.localOn !== this.context.on) { this.localOn = this.context.on; this.renderer.setText(this.btn, this.localOn); } } }

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Pseudo code class InternalComponent { create() { this.btn = this.renderer.createElement('button'); this.localOn = this.context.on; this.renderer.setText(this.btn, this.localOn); } detectChanges() { if (this.localOn !== this.context.on) { this.localOn = this.context.on; this.renderer.setText(this.btn, this.localOn); } } }

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Transpiles an Angular application and performs a set of transformations, producing highly optimized VM friendly output Compiler

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Compiler works runtime and build time

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ng new hello-world --mobile

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angular/mobile-toolkit

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Progressive enhancement for web applications

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mobile-toolkit • Offline access to static content • Notifications for new versions • Efficient download of deltas • Support of push notifications • AppShell

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Still immature…

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Development experience

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Typical JavaScript experience

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Angular is… • Built with TypeScript • Compile-time type checking • Great IDE/text editors support • Analyzable templates

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Type-checking and IntelliSense in templates

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Already supported by some IDEs

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Using style guide in your project

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Enforcing common style

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• Fork the official style guide • Modify the styles according to your needs • Introduce the style guide to your team • Verify that each individual code change follows it Enforcing common style

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• Fork the official style guide • Modify the styles according to your needs • Introduce the style guide to your team • Verify that each individual code change follows it Enforcing common style

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• Fork the official style guide • Modify the styles according to your needs • Introduce the style guide to your team • Verify that each individual code change follows it Enforcing common style

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Code review process

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manual boring error-prone

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codelyzer

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“codelyzer is a project which aims to enforce common style and verify correctness of your program”

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Recap • Angular as development platform • Angular CLI and angular-seed • Core • Mobile toolkit • Development experience

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Resources • angular.io • github.com/angular/angular • github.com/angular/mobile-toolkit • github.com/angular/angular-cli • github.com/mgechev/angular-seed

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Thank you! github.com/mgechev twitter.com/mgechev blog.mgechev.com