Angular 1.x vs. Angular 2.x
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This document summarizes the key steps in bootstrapping an Angular application: 1. Create the platform injector with browser providers 2. Create the application injector with browser app providers and custom providers 3. Bootstrap the root component, which compiles the component, runs change detection, and creates component classes
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![var injector = createInjector(modules);
injector.invoke([
'$rootScope','$rootElement','$compile','$injector','$animate',
function(scope, element, compile, injector, animate) {
scope.$apply(function() {
element.data('$injector', injector);
compile(element)(scope);
});
}]
);
Create injector
(config & run)
Compile the root
element and return
link function.
Execute the link
function with the root
scope.
Apply,
update
the page](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-3-320.jpg)
![// Create Platform Injector
platform( BROWSER_PROVIDERS )
// Create Application Injector
.application([ BROWSER_APP_PROVIDERS, appProviders ]);
// Create Injector => Compile => tick => Create Classes
.bootstrap( MyApp );](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-7-320.jpg)
![ngXXX
angular.module('myApp', ['ngXXX', 'ngYYY']);
Invoke
Queue
ngYYY
Invoke
Queue
myApp
Invoke
Queue
Config
blocks
Config
blocks
Config
blocks
Run
blocks
Run
blocks
Run
blocks
$injector
Instance
Cache
Provider
Cache](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-9-320.jpg)
![constructor(token: any, { useClass, useValue, useExisting,
useFactory, deps, multi }: {
useClass? : Type,
useValue? : any,
useExisting?: any,
useFactory? : Function,
deps? : Object[],
multi? : boolean
})](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-16-320.jpg)
![Component
Metadata
queries? : {[key: string]: any} Directive
Metadata](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-17-320.jpg)
![Component
Metadata
queries? : {[key: string]: any} Directive
Metadata](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-20-320.jpg)
![IC
IC
IC
IC ICIC
{{interpolation}}
[property] = "exp"
(event) = "exp"](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-29-320.jpg)
![<todo-list
[source]="todos"
(selected-change)="update($event)" />
Style
Injector
Class
Template](https://image.slidesharecdn.com/ng1vs-160412143116/85/Angular-1-x-vs-Angular-2-x-38-320.jpg)
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