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UPGRADING FROM 1.x

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Ciro Nunes FRONTEND ENGINEER @cironunesdev

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1. Preparation

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1. Preparation 2. Migration

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follow STYLE GUIDE the #1

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use MODULE LOADER #2 a system.js

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ES5

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ES6 ES2015 ES5

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ES7 ES2016 ES6 ES2015 ES5

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TS ES7 ES2016 ES6 ES2015 ES5

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use COMPONENT DIRECTIVES #4

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COMPONENT DIRECTIVES

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angular.module('myApp') .directive('myGreeting', MyGreeting); function MyGreeting() { return { template: '

Hello {{ vm.person }}

', controller: function() { ... }, controllerAs: 'vm', scope: {}, bindToController: { person: '@' } }; } my-greeting.directive.js

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angular.module('myApp') .directive('myGreeting', MyGreeting); function MyGreeting() { return { template: '

Hello {{ vm.person }}

', controller: function() { ... }, controllerAs: 'vm', scope: {}, bindToController: { person: '@' } }; } my-greeting.directive.js

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AVOID: ng-‐controller ng-‐include replace: true terminal: true

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COMPONENTS

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angular.module('myApp') .component('myGreeting', myGreeting); var myGreeting = { template: '

Hello {{ $ctrl.person }}

', bindings: { person: '@' } }; my-greeting.component.js

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MIGRATING AN 1.x APP INCREMENTALLY

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BOOTSTRAPING HYBRID A1 + A2 APP

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INSTALLING THE UpgradeAdapter

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import {UpgradeAdapter} from 'angular2/upgrade'; const upgradeAdapter = new UpgradeAdapter(); export default upgradeAdapter; upgrade-adapter.ts

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import {upgradeAdapter} from 'upgrade-‐adapter'; upgradeAdapter.bootstrap( document.body, ['myApp'], { strictDi: true }); boot.ts

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MIGRATING SERVICES

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INJECTING 2 INTO 1

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import {Injectable} from 'angular2/core'; @Injectable() export class SampleService { getItems() { return [1, 2, 3]; } } sample.service.ts

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import {SampleService} from './sample-‐service'; upgradeAdapter.addProvider(SampleService); angular.module('heroApp', []) .factory( 'heroes', upgradeAdapter.downgradeNg2Provider(SampleService)) app.module.ts

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INJECTING 1 INTO 2

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import {upgradeAdapter} from './upgrade-‐adapter'; angular.module('myApp') .service('someService', SomeService); upgradeAdapter.upgradeNg1Provider('someService'); sample.service.ts

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MIGRATING COMPONENTS

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DOWGRADING USING A2 INTO A1

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import {Component, Input} from 'angular2/core'; @Component({ selector: 'my-‐greeting', template: `

` }) export class MyGreeting { @Input() name: string = 'World'; } my-greeting.component.ts

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import {MyGreeting} from './my-‐greeting.component'; angular.module('myApp') .directive( 'myGreeting', upgradeAdapter.downgradeNg2Component(MyGreeting)); my-app.module.ts

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UPGRADING USING A1 INTO A2

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export const myGreeting = { bindings: { name: '@' }, template: '

Hello {{ myGreeting.name }}!

', controller: function() { ... } }; my-greeting.directives.ts

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import {Component} from 'angular2/core'; import {upgradeAdapter} from './upgrade_adapter'; const MyGreeting = upgradeAdapter.upgradeNg1Component('myGreeting'); @Component({ selector: 'my-‐container', template: `

Greeting Component

`, directives: [MyGreeting] }) export class ContainerComponent { } my-container.component.ts