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chore: use the provide object literal 

closes #1594
replace `provide(...{use:...})` with `{provide: ..., use...}` syntax
This commit is contained in:
Foxandxss 2016-06-03 18:00:53 +02:00 committed by Ward Bell
parent 6f02f76fc2
commit c185c3548c
38 changed files with 193 additions and 528 deletions
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14
public/docs/_examples/cb-dependency-injection/e2e-spec.ts
View File

@ -35,16 +35,11 @@ describe('Dependency Injection Cookbook', function () {
expect(sortedHero).toBeDefined();
});
it('should render Hero of the Month when DI deps are defined using provide()', function () {
it('should render Hero of the Month', function () {
let heroOfTheMonth = element.all(by.xpath('//h3[text()="Hero of the month"]')).get(0);
expect(heroOfTheMonth).toBeDefined();
});
it('should render Hero of the Month when DI deps are defined using provide object literal', function () {
let heroOfTheMonth = element.all(by.xpath('//h3[text()="Hero of the month 2"]')).get(0);
expect(heroOfTheMonth).toBeDefined();
});
it('should render Hero Bios', function () {
let heroBios = element.all(by.xpath('//h3[text()="Hero Bios"]')).get(0);
expect(heroBios).toBeDefined();
@ -60,16 +55,11 @@ describe('Dependency Injection Cookbook', function () {
expect(magmaPhone).toBeDefined();
});
it('should render Hero-of-the-Month runner-ups when DI deps are defined using provide()', function () {
it('should render Hero-of-the-Month runner-ups', function () {
let runnersUp = element(by.id('rups1')).getText();
expect(runnersUp).toContain('RubberMan, Mr. Nice');
});
it('should render Hero-of-the-Month runner-ups when DI deps are defined using provide object literal', function () {
let runnersUp = element(by.id('rups2')).getText();
expect(runnersUp).toContain('RubberMan, Mr. Nice');
});
it('should render DateLogger log entry in Hero-of-the-Month', function () {
let logs = element.all(by.id('logs')).get(0).getText();
expect(logs).toContain('INFO: starting up at');

4
public/docs/_examples/cb-dependency-injection/ts/app/app.component.html
View File

@ -23,10 +23,6 @@
<hero-of-the-month></hero-of-the-month>
</div>
<div class="di-component">
<hero-of-the-month-lit></hero-of-the-month-lit>
</div>
<div class="di-component">
<h3>Unsorted Heroes</h3>
<unsorted-heroes></unsorted-heroes>

5
public/docs/_examples/cb-dependency-injection/ts/app/app.component.ts
View File

@ -9,13 +9,10 @@ import { HeroesBaseComponent,
import { HighlightDirective } from './highlight.directive';
import { ParentFinderComponent } from './parent-finder.component';
// Object Literal syntax
import { HeroOfTheMonthLiteralsComponent } from './hero-of-the-month-literals.component';
const DIRECTIVES = [
HeroBiosComponent, HeroBiosAndContactsComponent,
HeroesBaseComponent, SortedHeroesComponent,
HeroOfTheMonthComponent, HeroOfTheMonthLiteralsComponent,
HeroOfTheMonthComponent,
HighlightDirective,
ParentFinderComponent
];

67
public/docs/_examples/cb-dependency-injection/ts/app/hero-of-the-month-literals.component.ts
View File

@ -1,67 +0,0 @@
/* tslint:disable:one-line:check-open-brace*/
// #docplaster
// #docregion opaque-token
import { OpaqueToken } from '@angular/core';
export const TITLE = new OpaqueToken('title');
// #enddocregion opaque-token
// #docregion hero-of-the-month
import { Component, Inject } from '@angular/core';
import { DateLoggerService,
MinimalLogger } from './date-logger.service';
import { Hero } from './hero';
import { HeroService } from './hero.service';
import { LoggerService } from './logger.service';
import { RUNNERS_UP,
runnersUpFactory } from './runners-up';
// #enddocregion hero-of-the-month
// #docregion some-hero
const someHero = new Hero(42, 'Magma', 'Had a great month!', '555-555-5555');
// #enddocregion some-hero
const template = `
<h3>{{title}}</h3>
<div>Winner: <strong>{{heroOfTheMonth.name}}</strong></div>
<div>Reason for award: <strong>{{heroOfTheMonth.description}}</strong></div>
<div>Runners-up: <strong id="rups2">{{runnersUp}}</strong></div>
<p>Logs:</p>
<div id="logs">
<div *ngFor="let log of logs">{{log}}</div>
</div>
`;
// #docregion hero-of-the-month
@Component({
selector: 'hero-of-the-month-lit',
template: template,
// #docregion providers-using-object-literals
providers: [
{provide: Hero, useValue: someHero},
{provide: TITLE, useValue: 'Hero of the Month - Object Literals'},
{provide: HeroService, useClass: HeroService},
{provide: LoggerService, useClass: DateLoggerService},
{provide: MinimalLogger, useExisting: LoggerService},
{provide: RUNNERS_UP, useFactory: runnersUpFactory(2), deps: [Hero, HeroService]}
]
// #enddocregion providers-using-object-literals
})
export class HeroOfTheMonthLiteralsComponent {
logs: string[] = [];
// #docregion ctor-signature
constructor(
logger: MinimalLogger,
public heroOfTheMonth: Hero,
@Inject(RUNNERS_UP) public runnersUp: string,
@Inject(TITLE) public title: string)
// #enddocregion ctor-signature
{
this.logs = logger.logs;
logger.logInfo('starting up');
}
}
// #enddocregion hero-of-the-month

14
public/docs/_examples/cb-dependency-injection/ts/app/hero-of-the-month.component.ts
View File

@ -7,7 +7,7 @@ export const TITLE = new OpaqueToken('title');
// #enddocregion opaque-token
// #docregion hero-of-the-month
import { Component, Inject, provide } from '@angular/core';
import { Component, Inject } from '@angular/core';
import { DateLoggerService,
MinimalLogger } from './date-logger.service';
@ -40,20 +40,20 @@ const template = `
template: template,
providers: [
// #docregion use-value
provide(Hero, {useValue: someHero}),
{ provide: Hero, useValue: someHero },
// #docregion provide-opaque-token
provide(TITLE, {useValue: 'Hero of the Month'}),
{ provide: TITLE, useValue: 'Hero of the Month' },
// #enddocregion provide-opaque-token
// #enddocregion use-value
// #docregion use-class
provide(HeroService, {useClass: HeroService}),
provide(LoggerService, {useClass: DateLoggerService}),
{ provide: HeroService, useClass: HeroService },
{ provide: LoggerService, useClass: DateLoggerService },
// #enddocregion use-class
// #docregion use-existing
provide(MinimalLogger, {useExisting: LoggerService}),
{ provide: MinimalLogger, useExisting: LoggerService },
// #enddocregion use-existing
// #docregion provide-opaque-token, use-factory
provide(RUNNERS_UP, {useFactory: runnersUpFactory(2), deps: [Hero, HeroService]})
{ provide: RUNNERS_UP, useFactory: runnersUpFactory(2), deps: [Hero, HeroService] }
// #enddocregion provide-opaque-token, use-factory
]
})

8
public/docs/_examples/cb-dependency-injection/ts/app/main.ts
View File

@ -1,6 +1,5 @@
// #docregion
import { bootstrap } from '@angular/platform-browser-dynamic';
import { provide } from '@angular/core';
import { XHRBackend } from '@angular/http';
import { ROUTER_PROVIDERS } from '@angular/router-deprecated';
import { LocationStrategy,
@ -15,10 +14,9 @@ import { AppComponent } from './app.component';
// #docregion bootstrap
bootstrap(AppComponent, [
ROUTER_PROVIDERS,
provide(LocationStrategy,
{useClass: HashLocationStrategy}),
{ provide: LocationStrategy, useClass: HashLocationStrategy },
provide(XHRBackend, { useClass: InMemoryBackendService }), // in-mem server
provide(SEED_DATA, { useClass: HeroData }) // in-mem server data
{ provide: XHRBackend, useClass: InMemoryBackendService }, // in-mem server
{ provide: SEED_DATA, useClass: HeroData } // in-mem server data
]).catch((err: any) => console.error(err));
// #enddocregion bootstrap

13
public/docs/_examples/cb-dependency-injection/ts/app/parent-finder.component.ts
View File

@ -22,14 +22,17 @@ const DifferentParent = Parent;
const provideParent =
// #enddocregion provide-parent, provide-the-parent
// #docregion provide-parent
(component: any, parentType?: any) =>
provide(parentType || Parent, { useExisting: forwardRef(() => component) });
(component: any, parentType?: any) => {
return { provide: parentType || Parent, useExisting: forwardRef(() => component) }
};
// #enddocregion provide-parent
// Simpler syntax version that always provides the component in the name of `Parent`.
const provideTheParent =
// #docregion provide-the-parent
(component: any) => provide(Parent, { useExisting: forwardRef(() => component) });
(component: any) => {
return { provide: Parent, useExisting: forwardRef(() => component) }
};
// #enddocregion provide-the-parent
@ -105,7 +108,7 @@ const templateB = `
selector: 'barry',
template: templateB,
directives: C_DIRECTIVES,
providers: [ provide(Parent, { useExisting: forwardRef(() => BarryComponent) }) ]
providers: [{ provide: Parent, useExisting: forwardRef(() => BarryComponent) }]
})
export class BarryComponent implements Parent {
name = 'Barry';
@ -155,7 +158,7 @@ const B_DIRECTIVES = [ BarryComponent, BethComponent, BobComponent ];
</div>`,
// #enddocregion alex-1
// #docregion alex-providers
providers: [ provide(Parent, { useExisting: forwardRef(() => AlexComponent) }) ],
providers: [{ provide: Parent, useExisting: forwardRef(() => AlexComponent) }],
// #enddocregion alex-providers
// #docregion alex-1
directives: C_DIRECTIVES

6
public/docs/_examples/cb-ts-to-js/js/app/main.js
View File

@ -4,8 +4,6 @@
// #enddocregion appimport
// #docregion ng2import
var provide =
ng.core.provide;
var bootstrap =
ng.platformBrowserDynamic.bootstrap;
var LocationStrategy =
@ -25,10 +23,10 @@
bootstrap(app.HeroDIComponent, [app.DataService]);
bootstrap(app.HeroDIInlineComponent, [app.DataService]);
bootstrap(app.HeroDIInjectComponent, [
ng.core.provide('heroName', {useValue: 'Windstorm'})
{ provide: 'heroName', useValue: 'Windstorm' }
]);
bootstrap(app.HeroDIInjectComponent2, [
ng.core.provide('heroName', {useValue: 'Bombasto'})
{ provide: 'heroName', useValue: 'Bombasto' }
]);
bootstrap(app.HeroDIInjectAdditionalComponent);
bootstrap(app.HeroIOComponent);

4
public/docs/_examples/cb-ts-to-js/ts/app/main.ts
View File

@ -1,6 +1,4 @@
// #docregion ng2import
import { provide }
from '@angular/core';
import { bootstrap }
from '@angular/platform-browser-dynamic';
import {
@ -29,7 +27,7 @@ bootstrap(HeroComponent);
bootstrap(HeroLifecycleComponent);
bootstrap(HeroDIComponent, [DataService]);
bootstrap(HeroDIInjectComponent, [
provide('heroName', {useValue: 'Windstorm'})
{ provide: 'heroName', useValue: 'Windstorm' }
]);
bootstrap(AppDIInjectAdditionalComponent);
bootstrap(AppIOComponent);

36
public/docs/_examples/dependency-injection/dart/lib/providers_component.dart
View File

@ -27,38 +27,6 @@ class ProviderComponent1 {
}
}
@Component(
selector: 'provider-2',
template: '{{log}}',
providers:
// #docregion providers-2
const [const Provider(Logger, useClass: Logger)]
// #enddocregion providers-2
)
class ProviderComponent2 {
String log;
ProviderComponent2(Logger logger) {
logger.log('Hello from logger provided with Provider class and useClass');
log = logger.logs[0];
}
}
/// Component just used to ensure that shared E2E tests pass.
@Component(
selector: 'provider-3',
template: '{{log}}',
providers: const [const Provider(Logger, useClass: Logger)]
)
class ProviderComponent3 {
String log;
ProviderComponent3(Logger logger) {
logger.log('Hello from logger provided with useClass');
log = logger.logs[0];
}
}
/// Component just used to ensure that shared E2E tests pass.
@Component(
selector: 'provider-3a',
@ -282,8 +250,6 @@ class ProviderComponent10 implements OnInit {
template: '''
<h2>Provider variations</h2>
<div id="p1"><provider-1></provider-1></div>
<div id="p2"><provider-2></provider-2></div>
<div id="p3"><provider-3></provider-3></div>
<div id="p3a"><provider-3a></provider-3a></div>
<div id="p4"><provider-4></provider-4></div>
<div id="p5"><provider-5></provider-5></div>
@ -295,8 +261,6 @@ class ProviderComponent10 implements OnInit {
<div id="p10"><provider-10></provider-10></div>''',
directives: const [
ProviderComponent1,
ProviderComponent2,
ProviderComponent3,
ProviderComponent3a,
ProviderComponent4,
ProviderComponent5,

12
public/docs/_examples/dependency-injection/e2e-spec.ts
View File

@ -80,18 +80,8 @@ describe('Dependency Injection Tests', function () {
expect(element(by.css('#p1')).getText()).toEqual(expectedMsg);
});
it('P2 (Provider) displays as expected', function () {
expectedMsg = 'Hello from logger provided with Provider class and useClass';
expect(element(by.css('#p2')).getText()).toEqual(expectedMsg);
});
it('P3 (provide) displays as expected', function () {
expectedMsg = 'Hello from logger provided with useClass';
expect(element(by.css('#p3')).getText()).toEqual(expectedMsg);
});
it('P3a (provide) displays as expected', function () {
expectedMsg = 'Hello from logger provided with {provide: Logger, useClass: Logger}';
expectedMsg = 'Hello from logger provided with { provide: Logger, useClass: Logger }';
expect(element(by.css('#p3a')).getText()).toEqual(expectedMsg);
});

4
public/docs/_examples/dependency-injection/ts/app/app.component.2.ts
View File

@ -4,7 +4,7 @@ import { Component } from '@angular/core';
import { CarComponent } from './car/car.component';
import { HeroesComponent } from './heroes/heroes.component.1';
import { provide, Inject } from '@angular/core';
import { Inject } from '@angular/core';
import { APP_CONFIG, AppConfig,
HERO_DI_CONFIG } from './app.config';
import { Logger } from './logger.service';
@ -21,7 +21,7 @@ import { Logger } from './logger.service';
providers: [
Logger,
// #docregion providers
provide(APP_CONFIG, {useValue: HERO_DI_CONFIG})
{ provide: APP_CONFIG, useValue: HERO_DI_CONFIG }
// #enddocregion providers
]
})

4
public/docs/_examples/dependency-injection/ts/app/app.component.ts
View File

@ -1,7 +1,7 @@
// #docplaster
// #docregion
// #docregion imports
import { Component, Inject, provide } from '@angular/core';
import { Component, Inject } from '@angular/core';
import { CarComponent } from './car/car.component';
import { HeroesComponent } from './heroes/heroes.component';
@ -37,7 +37,7 @@ import { ProvidersComponent } from './providers.component';
providers: [
Logger,
UserService,
provide(APP_CONFIG, {useValue: HERO_DI_CONFIG})
{ provide: APP_CONFIG, useValue: HERO_DI_CONFIG }
]
// #enddocregion providers
})

6
public/docs/_examples/dependency-injection/ts/app/heroes/hero.service.provider.ts
View File

@ -1,6 +1,4 @@
// #docregion
import { provide } from '@angular/core';
import { HeroService } from './hero.service';
import { Logger } from '../logger.service';
import { UserService } from '../user.service';
@ -13,8 +11,8 @@ let heroServiceFactory = (logger: Logger, userService: UserService) => {
// #docregion provider
export let heroServiceProvider =
provide(HeroService, {
{ provide: HeroService,
useFactory: heroServiceFactory,
deps: [Logger, UserService]
});
};
// #enddocregion provider

61
public/docs/_examples/dependency-injection/ts/app/providers.component.ts
View File

@ -1,8 +1,7 @@
/* tslint:disable:one-line:check-open-brace*/
// Examples of provider arrays
// #docplaster
import { Component, Inject, Injectable,
provide, Provider } from '@angular/core';
import { Component, Inject, Injectable } from '@angular/core';
import { APP_CONFIG, AppConfig,
HERO_DI_CONFIG } from './app.config';
@ -30,53 +29,19 @@ export class ProviderComponent1 {
}
}
//////////////////////////////////////////
@Component({
selector: 'provider-2',
template: template,
providers:
// #docregion providers-2
[new Provider(Logger, {useClass: Logger})]
// #enddocregion providers-2
})
export class ProviderComponent2 {
log: string;
constructor(logger: Logger) {
logger.log('Hello from logger provided with Provider class and useClass');
this.log = logger.logs[0];
}
}
//////////////////////////////////////////
@Component({
selector: 'provider-3',
template: template,
providers:
// #docregion providers-3
[provide(Logger, {useClass: Logger})]
// #enddocregion providers-3
})
export class ProviderComponent3 {
log: string;
constructor(logger: Logger) {
logger.log('Hello from logger provided with useClass');
this.log = logger.logs[0];
}
}
//////////////////////////////////////////
@Component({
selector: 'provider-3a',
template: template,
providers:
// #docregion providers-3a
[{provide: Logger, useClass: Logger}]
[{ provide: Logger, useClass: Logger }]
// #enddocregion providers-3a
})
export class ProviderComponent3a {
log: string;
constructor(logger: Logger) {
logger.log('Hello from logger provided with {provide: Logger, useClass: Logger}');
logger.log('Hello from logger provided with { provide: Logger, useClass: Logger }');
this.log = logger.logs[0];
}
}
@ -89,7 +54,7 @@ class BetterLogger extends Logger {}
template: template,
providers:
// #docregion providers-4
[provide(Logger, {useClass: BetterLogger})]
[{ provide: Logger, useClass: BetterLogger }]
// #enddocregion providers-4
})
export class ProviderComponent4 {
@ -119,7 +84,7 @@ class EvenBetterLogger extends Logger {
providers:
// #docregion providers-5
[ UserService,
provide(Logger, {useClass: EvenBetterLogger}) ]
{ provide: Logger, useClass: EvenBetterLogger }]
// #enddocregion providers-5
})
export class ProviderComponent5 {
@ -146,7 +111,7 @@ class OldLogger {
// #docregion providers-6a
[ NewLogger,
// Not aliased! Creates two instances of `NewLogger`
provide(OldLogger, {useClass: NewLogger}) ]
{ provide: OldLogger, useClass: NewLogger}]
// #enddocregion providers-6a
})
export class ProviderComponent6a {
@ -169,7 +134,7 @@ export class ProviderComponent6a {
// #docregion providers-6b
[ NewLogger,
// Alias OldLogger w/ reference to NewLogger
provide(OldLogger, {useExisting: NewLogger}) ]
{ provide: OldLogger, useExisting: NewLogger}]
// #enddocregion providers-6b
})
export class ProviderComponent6b {
@ -197,7 +162,7 @@ let silentLogger = {
template: template,
providers:
// #docregion providers-7
[provide(Logger, {useValue: silentLogger})]
[{ provide: Logger, useValue: silentLogger }]
// #enddocregion providers-7
})
export class ProviderComponent7 {
@ -230,11 +195,11 @@ export class ProviderComponent8 {
/*
// #docregion providers-9-interface
// FAIL! Can't use interface as provider token
[provide(AppConfig, {useValue: HERO_DI_CONFIG})]
[{ provide: AppConfig, useValue: HERO_DI_CONFIG })]
// #enddocregion providers-9-interface
*/
// #docregion providers-9
providers: [provide(APP_CONFIG, {useValue: HERO_DI_CONFIG})]
providers: [{ provide: APP_CONFIG, useValue: HERO_DI_CONFIG }]
// #enddocregion providers-9
})
export class ProviderComponent9 {
@ -257,7 +222,7 @@ export class ProviderComponent9 {
// Sample providers 1 to 7 illustrate a required logger dependency.
// Optional logger, can be null
// #docregion import-optional
import {Optional} from '@angular/core';
import { Optional } from '@angular/core';
// #enddocregion import-optional
let some_message: string = 'Hello from the injected logger';
@ -286,8 +251,6 @@ export class ProviderComponent10 {
template: `
<h2>Provider variations</h2>
<div id="p1"><provider-1></provider-1></div>
<div id="p2"><provider-2></provider-2></div>
<div id="p3"><provider-3></provider-3></div>
<div id="p3a"><provider-3a></provider-3a></div>
<div id="p4"><provider-4></provider-4></div>
<div id="p5"><provider-5></provider-5></div>
@ -300,8 +263,6 @@ export class ProviderComponent10 {
`,
directives: [
ProviderComponent1,
ProviderComponent2,
ProviderComponent3,
ProviderComponent3a,
ProviderComponent4,
ProviderComponent5,

4
public/docs/_examples/router-deprecated/ts/app/main.2.ts
View File

@ -8,7 +8,6 @@ import { bootstrap } from '@angular/platform-browser-dynamic';
import { ROUTER_PROVIDERS } from '@angular/router-deprecated';
// Add these symbols to override the `LocationStrategy`
import { provide } from '@angular/core';
import { LocationStrategy,
HashLocationStrategy } from '@angular/common';
@ -27,7 +26,6 @@ import { AppComponent as ac } from './app.component.2';
bootstrap(ac, [
// #docregion
ROUTER_PROVIDERS,
provide(LocationStrategy,
{useClass: HashLocationStrategy}) // .../#/crisis-center/
{ provide: LocationStrategy, useClass: HashLocationStrategy } // .../#/crisis-center/
]);
// #enddocregion

4
public/docs/_examples/router/ts/app/main.2.ts
View File

@ -8,7 +8,6 @@ import { bootstrap } from '@angular/platform-browser-dynamic';
import { ROUTER_PROVIDERS } from '@angular/router';
// Add these symbols to override the `LocationStrategy`
import { provide } from '@angular/core';
import { LocationStrategy,
HashLocationStrategy } from '@angular/common';
@ -27,7 +26,6 @@ import {AppComponent as ac} from './app.component.2';
bootstrap(ac, [
// #docregion
ROUTER_PROVIDERS,
provide(LocationStrategy,
{useClass: HashLocationStrategy}) // .../#/crisis-center/
{ provide: LocationStrategy, useClass: HashLocationStrategy } // .../#/crisis-center/
]);
// #enddocregion

5
public/docs/_examples/server-communication/ts/app/main.ts
View File

@ -1,7 +1,6 @@
// #docplaster
// #docregion final
// Imports for loading & configuring the in-memory web api
import { provide } from '@angular/core';
import { XHRBackend } from '@angular/http';
import { InMemoryBackendService,
@ -24,7 +23,7 @@ bootstrap(AppComponent, [ HTTP_PROVIDERS ]);
// #docregion final
bootstrap(AppComponent, [
HTTP_PROVIDERS,
provide(XHRBackend, { useClass: InMemoryBackendService }), // in-mem server
provide(SEED_DATA, { useClass: HeroData }) // in-mem server data
{ provide: XHRBackend, useClass: InMemoryBackendService }, // in-mem server
{ provide: SEED_DATA, useClass: HeroData } // in-mem server data
]);
// #enddocregion final

6
public/docs/_examples/testing/ts/app/app.component.spec.ts
View File

@ -2,7 +2,7 @@
import { AppComponent } from './app.component';
import { By } from '@angular/platform-browser';
import { DebugElement, provide } from '@angular/core';
import { DebugElement } from '@angular/core';
import {
beforeEach, beforeEachProviders,
@ -28,8 +28,8 @@ describe('AppComponent', () => {
.overrideDirective(AppComponent, RouterLink, MockRouterLink)
.overrideDirective(AppComponent, RouterOutlet, MockRouterOutlet)
.overrideProviders(AppComponent, [
provide(HeroService, {useClass: MockHeroService}),
provide(Router, {useClass: MockRouter}),
{ provide: HeroService, useClass: MockHeroService},
{ provide: Router, useClass: MockRouter},
])
.createAsync(AppComponent)
.then(fix => {

5
public/docs/_examples/testing/ts/app/bad-tests.spec.ts
View File

@ -27,7 +27,6 @@ import {
import { ComponentFixture, TestComponentBuilder } from '@angular/compiler/testing';
import { provide } from '@angular/core';
import { ViewMetadata } from '@angular/core';
import { Observable } from 'rxjs/Rx';
@ -145,7 +144,7 @@ xdescribe('async & inject testing errors', () => {
}, 10000);
describe('using beforeEachProviders', () => {
beforeEachProviders(() => [provide(FancyService, {useValue: new FancyService()})]);
beforeEachProviders(() => [{ provide: FancyService, useValue: new FancyService() }]);
beforeEach(
inject([FancyService], (service: FancyService) => { expect(service.value).toEqual('real value'); }));
@ -155,7 +154,7 @@ xdescribe('async & inject testing errors', () => {
it('should fail when the injector has already been used', () => {
patchJasmineBeforeEach();
expect(() => {
beforeEachProviders(() => [provide(FancyService, {useValue: new FancyService()})]);
beforeEachProviders(() => [{ provide: FancyService, useValue: new FancyService() }]);
})
.toThrowError('beforeEachProviders was called after the injector had been used ' +
'in a beforeEach or it block. This invalidates the test injector');

306
public/docs/_examples/testing/ts/app/bag.spec.ts
View File

@ -1,9 +1,9 @@
// Based on https://github.com/angular/angular/blob/master/modules/angular2/test/testing/testing_public_spec.ts
/* tslint:disable:no-unused-variable */
import {
BadTemplateUrlComp, ButtonComp,
BadTemplateUrl, ButtonComp,
ChildChildComp, ChildComp, ChildWithChildComp,
CompWithCompWithExternalTemplate, ExternalTemplateComp,
ExternalTemplateComp,
FancyService, MockFancyService,
InputComp,
MyIfComp, MyIfChildComp, MyIfParentComp,
@ -18,14 +18,11 @@ import { By } from '@angular/platform-browser';
import {
beforeEach, beforeEachProviders,
describe, ddescribe, xdescribe,
it, iit, xit,
expect, it, iit, xit,
async, inject,
fakeAsync, tick, withProviders
} from '@angular/core/testing';
// https://github.com/angular/angular/issues/9017
import {expect} from './expect-proper';
import { ComponentFixture, TestComponentBuilder } from '@angular/compiler/testing';
import { ViewMetadata } from '@angular/core';
@ -118,7 +115,7 @@ describe('using the test injector with the inject helper', () => {
describe('setting up Providers with FancyService', () => {
beforeEachProviders(() => [
{provide: FancyService, useValue: new FancyService()}
{ provide: FancyService, useValue: new FancyService() }
]);
it('should use FancyService',
@ -185,42 +182,16 @@ describe('using the test injector with the inject helper', () => {
describe('using `withProviders` for per-test provision', () => {
it('should inject test-local FancyService for this test',
// `withProviders`: set up providers at individual test level
withProviders(() => [{provide: FancyService, useValue: {value: 'fake value'}}])
withProviders(() => [{ provide: FancyService, useValue: {value: 'fake value' }}])
// now inject and test
.inject([FancyService], (service: FancyService) => {
expect(service.value).toEqual('fake value');
}));
});
describe('can spy on FancyService', () => {
let spy: jasmine.Spy;
let value: string;
beforeEachProviders(() => [
{provide: FancyService, useValue: new FancyService()}
]);
beforeEach(inject([FancyService], (service: FancyService) => {
spy = spyOn(service, 'getValue').and.callFake(() => 'fake value');
value = service.getValue();
}));
it('FancyService.getValue spy should return fake', () => {
expect(value).toBe('fake value');
});
it('FancyService.getValue spy should have been called', () => {
expect(spy.calls.count()).toBe(1, 'should be called once');
});
});
});
describe('test component builder', function() {
beforeEachProviders(() => [ FancyService ]);
it('should instantiate a component with valid DOM',
async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
@ -342,7 +313,7 @@ describe('test component builder', function() {
tcb.overrideProviders(
TestProvidersComp,
[{provide: FancyService, useClass: MockFancyService}]
[{ provide: FancyService, useClass: MockFancyService }]
)
.createAsync(TestProvidersComp)
.then(fixture => {
@ -357,7 +328,7 @@ describe('test component builder', function() {
tcb.overrideViewProviders(
TestViewProvidersComp,
[{provide: FancyService, useClass: MockFancyService}]
[{ provide: FancyService, useClass: MockFancyService }]
)
.createAsync(TestViewProvidersComp)
.then(fixture => {
@ -367,7 +338,7 @@ describe('test component builder', function() {
});
})));
it('should allow an external template',
it('should allow an external templateUrl',
async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
tcb.createAsync(ExternalTemplateComp)
@ -376,201 +347,130 @@ describe('test component builder', function() {
expect(fixture.nativeElement)
.toHaveText('from external template\n');
});
})), 10000); // Long timeout because of actual XHR to fetch template.
})), 10000); // Long timeout because this test makes an actual XHR.
it('should create a component with a component that has an external template',
async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
tcb.createAsync(CompWithCompWithExternalTemplate)
.then(fixture => {
fixture.detectChanges();
let h3 = fixture.debugElement.query(By.css('h3'));
expect(h3).not.toBeNull('should create CompWithExtComp component');
})
.catch((err) => {
// console.error(err);
throw (err);
});
})), 10000); // Long timeout because of actual XHR to fetch template.
describe('(lifecycle hooks w/ MyIfParentComp)', () => {
let fixture: ComponentFixture<MyIfParentComp>;
let parent: MyIfParentComp;
let child: MyIfChildComp;
/**
* Get the MyIfChildComp from parent; fail w/ good message if cannot.
*/
function getChild() {
it('should spy on injected component service',
async(inject([TestComponentBuilder, FancyService],
(tcb: TestComponentBuilder, service: FancyService) => {
let childDe: DebugElement; // DebugElement that should hold the MyIfChildComp
let spy = spyOn(service, 'getValue').and.callThrough();
// The Hard Way: requires detailed knowledge of the parent template
try {
childDe = fixture.debugElement.children[4].children[0];
} catch (err) { /* we'll report the error */ }
tcb
.createAsync(ExternalTemplateComp)
.then(fixture => {
// DebugElement.queryAll: if we wanted all of many instances:
childDe = fixture.debugElement
.queryAll(function (de) { return de.componentInstance instanceof MyIfChildComp; })[0];
// let spy = spyOn(service, 'getValue').and.callThrough();
// WE'LL USE THIS APPROACH !
// DebugElement.query: find first instance (if any)
childDe = fixture.debugElement
.query(function (de) { return de.componentInstance instanceof MyIfChildComp; });
fixture.detectChanges();
expect(spy.calls.count()).toBe(1, 'should be called once');
});
})), 10000); // Long timeout because of actual XHR to fetch template.
if (childDe && childDe.componentInstance) {
child = childDe.componentInstance;
} else {
fail('Unable to find MyIfChildComp within MyIfParentComp');
}
describe('(lifecycle hooks w/ MyIfParentComp)', () => {
let fixture: ComponentFixture<MyIfParentComp>;
let parent: MyIfParentComp;
let child: MyIfChildComp;
/**
* Get the MyIfChildComp from parent; fail w/ good message if cannot.
*/
function getChild() {
let childDe: DebugElement; // DebugElement that should hold the MyIfChildComp
// The Hard Way: requires detailed knowledge of the parent template
try {
childDe = fixture.debugElement.children[4].children[0];
} catch (err) { /* we'll report the error */ }
// DebugElement.queryAll: if we wanted all of many instances:
childDe = fixture.debugElement
.queryAll(function (de) { return de.componentInstance instanceof MyIfChildComp; })[0];
// WE'LL USE THIS APPROACH !
// DebugElement.query: find first instance (if any)
childDe = fixture.debugElement
.query(function (de) { return de.componentInstance instanceof MyIfChildComp; });
if (childDe && childDe.componentInstance) {
child = childDe.componentInstance;
} else {
fail('Unable to find MyIfChildComp within MyIfParentComp');
return child;
}
return child;
}
// Create MyIfParentComp TCB and component instance before each test (async beforeEach)
beforeEach(async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
tcb.createAsync(MyIfParentComp)
.then(fix => {
fixture = fix;
parent = fixture.debugElement.componentInstance;
});
})));
// Create MyIfParentComp TCB and component instance before each test (async beforeEach)
beforeEach(async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
tcb.createAsync(MyIfParentComp)
.then(fix => {
fixture = fix;
parent = fixture.debugElement.componentInstance;
});
})));
it('should instantiate parent component', () => {
expect(parent).not.toBeNull('parent component should exist');
});
it('should instantiate parent component', () => {
expect(parent).not.toBeNull('parent component should exist');
});
it('parent component OnInit should NOT be called before first detectChanges()', () => {
expect(parent.ngOnInitCalled).toEqual(false);
});
it('parent component OnInit should NOT be called before first detectChanges()', () => {
expect(parent.ngOnInitCalled).toEqual(false);
});
it('parent component OnInit should be called after first detectChanges()', () => {
fixture.detectChanges();
expect(parent.ngOnInitCalled).toEqual(true);
});
it('parent component OnInit should be called after first detectChanges()', () => {
fixture.detectChanges();
expect(parent.ngOnInitCalled).toEqual(true);
});
it('child component should exist after OnInit', () => {
fixture.detectChanges();
getChild();
expect(child instanceof MyIfChildComp).toEqual(true, 'should create child');
});
it('child component should exist after OnInit', () => {
fixture.detectChanges();
getChild();
expect(child instanceof MyIfChildComp).toEqual(true, 'should create child');
});
it('should have called child component\'s OnInit ', () => {
fixture.detectChanges();
getChild();
expect(child.ngOnInitCalled).toEqual(true);
});
it('should have called child component\'s OnInit ', () => {
fixture.detectChanges();
getChild();
expect(child.ngOnInitCalled).toEqual(true);
});
it('child component called OnChanges once', () => {
fixture.detectChanges();
getChild();
expect(child.ngOnChangesCounter).toEqual(1);
});
it('child component called OnChanges once', () => {
fixture.detectChanges();
getChild();
expect(child.ngOnChangesCounter).toEqual(1);
});
it('changed parent value flows to child', () => {
fixture.detectChanges();
getChild();
it('changed parent value flows to child', () => {
fixture.detectChanges();
getChild();
parent.parentValue = 'foo';
fixture.detectChanges();
expect(child.ngOnChangesCounter).toEqual(2,
'expected 2 changes: initial value and changed value');
expect(child.childValue).toEqual('foo',
'childValue should eq changed parent value');
});
it('changed child value flows to parent', async(() => {
fixture.detectChanges();
getChild();
child.childValue = 'bar';
return new Promise(resolve => {
// Wait one JS engine turn!
setTimeout(() => resolve(), 0);
}).then(() => {
parent.parentValue = 'foo';
fixture.detectChanges();
expect(child.ngOnChangesCounter).toEqual(2,
'expected 2 changes: initial value and changed value');
expect(parent.parentValue).toEqual('bar',
'parentValue should eq changed parent value');
expect(child.childValue).toEqual('foo',
'childValue should eq changed parent value');
});
}));
it('changed child value flows to parent', async(() => {
fixture.detectChanges();
getChild();
it('clicking "Close Child" triggers child OnDestroy', () => {
fixture.detectChanges();
getChild();
child.childValue = 'bar';
let btn = fixture.debugElement.query(By.css('button'));
btn.triggerEventHandler('click', null);
return new Promise(resolve => {
// Wait one JS engine turn!
setTimeout(() => resolve(), 0);
}).then(() => {
fixture.detectChanges();
expect(child.ngOnChangesCounter).toEqual(2,
'expected 2 changes: initial value and changed value');
expect(parent.parentValue).toEqual('bar',
'parentValue should eq changed parent value');
});
}));
it('clicking "Close Child" triggers child OnDestroy', () => {
fixture.detectChanges();
getChild();
let btn = fixture.debugElement.query(By.css('button'));
btn.triggerEventHandler('click', null);
fixture.detectChanges();
expect(child.ngOnDestroyCalled).toEqual(true);
});
fixture.detectChanges();
expect(child.ngOnDestroyCalled).toEqual(true);
});
});
});
describe('test component builder in beforeEach (comp w/ external template)', function() {
let fixture: ComponentFixture<ExternalTemplateComp>;
beforeEach(async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
tcb.createAsync(ExternalTemplateComp).then(fix => fixture = fix);
}))
);
// May need Long timeout because this test makes an actual XHR to get template
// , 10000); WHY CAN'T I ADD TIMEOUT OVERRIDE
it('should allow an external template', () => {
fixture.detectChanges();
expect(fixture.nativeElement)
.toHaveText('from external template\n');
});
});
describe('test component builder in beforeEach (comp w/ internal comp w/ external template)', function() {
let fixture: ComponentFixture<CompWithCompWithExternalTemplate>;
beforeEach(async(inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
tcb.createAsync(CompWithCompWithExternalTemplate).then(fix => fixture = fix)
.catch((err) => {
// console.error(err);
throw (err);
});
}))
);
// May need Long timeout because this test makes an actual XHR to get template
// , 10000); WHY CAN'T I ADD TIMEOUT OVERRIDE
it('should allow an external template', () => {
fixture.detectChanges();
let h3 = fixture.debugElement.query(By.css('h3'));
expect(h3).not.toBeNull('should create CompWithExtComp component');
});
});
//////// Testing Framework Bugs? /////
import { HeroService } from './hero.service';
@ -594,7 +494,7 @@ describe('tcb.overrideProviders', () => {
tcb.overrideProviders(
AnotherProvidersComp,
[{provide: HeroService, useValue: {}}]
[{ provide: HeroService, useValue: {}} ]
)
.createAsync(AnotherProvidersComp);
})));

7
public/docs/_examples/testing/ts/app/dashboard.component.spec.ts
View File

@ -2,7 +2,6 @@
import { DashboardComponent } from './dashboard.component';
import { By } from '@angular/platform-browser';
import { provide } from '@angular/core';
import {
beforeEach, beforeEachProviders,
@ -74,9 +73,9 @@ describe('DashboardComponent', () => {
beforeEachProviders(() => {
mockHeroService = new MockHeroService();
return [
provide(Router, {useClass: MockRouter}),
provide(MockRouter, {useExisting: Router}),
provide(HeroService, {useValue: mockHeroService})
{ provide: Router, useClass: MockRouter},
{ provide: MockRouter, useExisting: Router},
{ provide: HeroService, useValue: mockHeroService }
];
});

2
public/docs/_examples/testing/ts/app/hero-detail.component.ts
View File

@ -5,7 +5,7 @@
import { Component, OnInit } from '@angular/core';
// #enddocregion import-oninit
// #docregion import-route-params
import {RouteParams} from '@angular/router-deprecated';
import { RouteParams } from '@angular/router-deprecated';
// #enddocregion import-route-params
import { Hero } from './hero';

4
public/docs/_examples/testing/ts/app/http-hero.service.spec.ts
View File

@ -8,8 +8,6 @@ import {
import { TestComponentBuilder } from '@angular/compiler/testing';
import { provide } from '@angular/core';
import {
MockBackend,
MockConnection } from '@angular/http/testing';
@ -46,7 +44,7 @@ describe('Http-HeroService (mockBackend)', () => {
beforeEachProviders(() => [
HTTP_PROVIDERS,
provide(XHRBackend, {useClass: MockBackend})
{ provide: XHRBackend, useClass: MockBackend }
]);
it('can instantiate service when inject service',

2
public/docs/_examples/testing/ts/app/my-uppercase.pipe.1.ts
View File

@ -1,5 +1,5 @@
// #docregion
import {Pipe, PipeTransform} from '@angular/core';
import { Pipe, PipeTransform } from '@angular/core';
@Pipe({ name: 'my-uppercase' })
export class MyUppercasePipe implements PipeTransform {

2
public/docs/_examples/testing/ts/app/my-uppercase.pipe.ts
View File

@ -1,6 +1,6 @@
// #docregion
// #docregion depends-on-angular
import {Pipe, PipeTransform} from '@angular/core';
import { Pipe, PipeTransform } from '@angular/core';
// #enddocregion depends-on-angular
@Pipe({ name: 'my-uppercase' })

5
public/docs/_examples/toh-6/ts/app/main.ts
View File

@ -1,7 +1,6 @@
// #docplaster
// #docregion final
// Imports for loading & configuring the in-memory web api
import { provide } from '@angular/core';
import { XHRBackend } from '@angular/http';
import { InMemoryBackendService, SEED_DATA } from 'angular2-in-memory-web-api';
@ -23,7 +22,7 @@ bootstrap(AppComponent, [ HTTP_PROVIDERS ]);
// #docregion final
bootstrap(AppComponent, [
HTTP_PROVIDERS,
provide(XHRBackend, { useClass: InMemoryBackendService }), // in-mem server
provide(SEED_DATA, { useClass: InMemoryDataService }) // in-mem server data
{ provide: XHRBackend, useClass: InMemoryBackendService }, // in-mem server
{ provide: SEED_DATA, useClass: InMemoryDataService } // in-mem server data
]);
// #enddocregion final

5
public/docs/_examples/upgrade-phonecat-2-hybrid/ts/app/core/phone/phone.service.spec.ts
View File

@ -1,5 +1,4 @@
// #docregion
import { provide } from '@angular/core';
import {
describe,
beforeEach,
@ -29,11 +28,11 @@ describe('Phone', function() {
Phone,
MockBackend,
BaseRequestOptions,
provide(Http, {
{ provide: Http,
useFactory: (backend: MockBackend, options: BaseRequestOptions) =>
new Http(backend, options),
deps: [MockBackend, BaseRequestOptions]
})
}
]);
beforeEach(inject([MockBackend, Phone],

5
public/docs/_examples/upgrade-phonecat-2-hybrid/ts/app/phone-detail/phone-detail.component.spec.ts
View File

@ -1,5 +1,4 @@
// #docregion
import { provide } from '@angular/core';
import { HTTP_PROVIDERS } from '@angular/http';
import { Observable } from 'rxjs/Rx';
@ -35,8 +34,8 @@ class MockPhone extends Phone {
describe('PhoneDetailComponent', () => {
beforeEachProviders(() => [
provide(Phone, {useClass: MockPhone}),
provide('$routeParams', {useValue: {phoneId: 'xyz'}}),
{ provide: Phone, useClass: MockPhone },
{ provide: '$routeParams', useValue: {phoneId: 'xyz'}},
HTTP_PROVIDERS
]);

3
public/docs/_examples/upgrade-phonecat-2-hybrid/ts/app/phone-list/phone-list.component.spec.ts
View File

@ -1,5 +1,4 @@
// #docregion
import { provide } from '@angular/core';
import { HTTP_PROVIDERS } from '@angular/http';
import { Observable } from 'rxjs/Rx';
import {
@ -32,7 +31,7 @@ class MockPhone extends Phone {
describe('PhoneList', () => {
beforeEachProviders(() => [
provide(Phone, {useClass: MockPhone}),
{ provide: Phone, useClass: MockPhone },
HTTP_PROVIDERS
]);

7
public/docs/_examples/upgrade-phonecat-3-final/ts/app/core/phone/phone.service.spec.ts
View File

@ -1,4 +1,3 @@
import { provide } from '@angular/core';
import {
describe,
beforeEach,
@ -23,15 +22,15 @@ describe('Phone', function() {
{name: 'Phone Z', snippet: '', images: []}
];
let mockBackend:MockBackend;
beforeEachProviders(() => [
Phone,
MockBackend,
BaseRequestOptions,
provide(Http, {
{ provide: Http,
useFactory: (backend: MockBackend, options: BaseRequestOptions) => new Http(backend, options),
deps: [MockBackend, BaseRequestOptions]
})
}
]);
beforeEach(inject([MockBackend, Phone], (_mockBackend_:MockBackend, _phone_:Phone) => {

5
public/docs/_examples/upgrade-phonecat-3-final/ts/app/main.ts
View File

@ -1,6 +1,5 @@
// #docregion
// #docregion imports
import { provide } from '@angular/core';
import {
LocationStrategy,
HashLocationStrategy,
@ -17,8 +16,8 @@ import { AppComponent } from './app.component';
bootstrap(AppComponent, [
HTTP_PROVIDERS,
ROUTER_PROVIDERS,
provide(APP_BASE_HREF, {useValue: '!'}),
provide(LocationStrategy, {useClass: HashLocationStrategy}),
{ provide: APP_BASE_HREF, useValue: '!' },
{ provide: LocationStrategy, useClass: HashLocationStrategy },
Phone
]);
// #enddocregion bootstrap

5
public/docs/_examples/upgrade-phonecat-3-final/ts/app/phone-detail/phone-detail.component.spec.ts
View File

@ -1,5 +1,4 @@
// #docregion
import { provide } from '@angular/core';
import { HTTP_PROVIDERS } from '@angular/http';
// #docregion routeparams
import { RouteParams } from '@angular/router-deprecated';
@ -41,8 +40,8 @@ describe('PhoneDetailComponent', () => {
// #docregion routeparams
beforeEachProviders(() => [
provide(Phone, {useClass: MockPhone}),
provide(RouteParams, {useValue: new RouteParams({phoneId: 'xyz'})}),
{ provide: Phone, useClass: MockPhone },
{ provide: RouteParams, useValue: new RouteParams({phoneId: 'xyz'})},
HTTP_PROVIDERS
]);
// #enddocregion routeparams

12
public/docs/_examples/upgrade-phonecat-3-final/ts/app/phone-list/phone-list.component.spec.ts
View File

@ -1,5 +1,5 @@
// #docregion routestuff
import { provide, ApplicationRef } from '@angular/core';
import { ApplicationRef } from '@angular/core';
import { LocationStrategy, HashLocationStrategy } from '@angular/common';
import { HTTP_PROVIDERS } from '@angular/http';
import {
@ -40,14 +40,14 @@ class MockPhone extends Phone {
describe('PhoneList', () => {
// #docregion routestuff
beforeEachProviders(() => [
provide(Phone, {useClass: MockPhone}),
{ provide: Phone, useClass: MockPhone},
HTTP_PROVIDERS,
ROUTER_PROVIDERS,
provide(ApplicationRef, {useClass: MockApplicationRef}),
provide(ROUTER_PRIMARY_COMPONENT, {useValue: AppComponent}),
provide(LocationStrategy, {useClass: MockLocationStrategy}),
{ provide: ApplicationRef, useClass: MockApplicationRef },
{ provide: ROUTER_PRIMARY_COMPONENT, useValue: AppComponent },
{ provide: LocationStrategy, useClass: MockLocationStrategy},
]);
// #enddocregion routestuff

9
public/docs/dart/latest/guide/dependency-injection.jade
View File

@ -46,9 +46,6 @@ block real-logger
block optional-logger
//- TBC.
block provider-function-etc
//- N/A
block provider-ctor-args
- var _secondParam = 'named parameter, such as <code>useClass</code>'
:marked
@ -62,10 +59,8 @@ block dart-diff-const-metadata
For that reason, we can't call functions to get values
to use within an annotation.
Instead, we use constant literals or constant constructors.
For example, a TypeScript program might use the
function call `provide(Logger, {useClass: BetterLogger})`,
which is equivalent to the TypeScript code
`new Provider(Logger, {useClass: BetterLogger})`.
For example, a TypeScript program will use the
object literal `{ provide: Logger, useClass: BetterLogger }`.
A Dart annotation would instead use the constant value `const Provider(Logger, useClass: BetterLogger)`.
block dart-diff-const-metadata-ctor

30
public/docs/ts/latest/cookbook/dependency-injection.jade
View File

@ -23,13 +23,11 @@ include ../_util-fns
[Inject the component's DOM element](#component-element)
[Define dependencies with providers](#providers)
* [The *provide* function](#provide)
* [The *provide* object literal](#provide)
* [useValue - the *value provider*](#usevalue)
* [useClass - the *class provider*](#useclass)
* [useExisting - the *alias provider*](#useexisting)
* [useFactory - the *factory provider*](#usefactory)
[Define providers with object literals](#object-literals)
* [useFactory - the *factory provider*](#usefactory)
[Provider token alternatives](#tokens)
* [class-interface](#class-interface)
@ -406,12 +404,9 @@ figure.image-display
.l-main-section
a(id='provide')
:marked
#### The *provide* function
#### The *provide* object literal
The imported Angular `provide` function creates an instance of
the Angular [Provider](../api/core/Provider-class.html) class.
The `provide` function takes a *token* and a *definition object*.
The `provide` object literal takes a *token* and a *definition object*.
The *token* is usually a class but [it doesn't have to be](#tokens).
The *definition* object has one main property, (e.g. `useValue`) that indicates how the provider
@ -543,21 +538,6 @@ a(id='usefactory')
Look at the [live example](/resources/live-examples/cb-dependency-injection/ts/plnkr.html)
for the full source code.
<a id="object-literals"></a>
.l-main-section
:marked
## Define providers with object literals
:marked
In the previous section we learned to use the `provide` method to customize how dependencies are created.
Instead of calling the `provide` function, we can configure providers with _object literals_.
It's a slightly more concise syntax and we don't have to import the `provide` function.
Here's a set of providers that we saw earlier, re-written with object literals.
+makeExample('cb-dependency-injection/ts/app/hero-of-the-month-literals.component.ts','providers-using-object-literals')(format='.')
a(id="tokens")
.l-main-section
:marked
@ -771,7 +751,7 @@ a(id='alex')
Recall that Angular always adds a component instance to its own injector;
that's why we could inject *Alex* into *Carol* [earlier](#known-parent).
We write an [*alias provider*](#useexisting) &mdash; a `provide` function with a `useExisting` definition &mdash;
We write an [*alias provider*](#useexisting) &mdash; a `provide` object literal with a `useExisting` definition &mdash;
that creates an *alternative* way to inject the same component instance
and add that provider to the `providers` array of the `@Component` metadata for the `AlexComponent`:
a(id="alex-providers")

25
public/docs/ts/latest/guide/dependency-injection.jade
View File

@ -508,7 +508,7 @@ code-example(format="nocode").
What matters is that the injector has a provider to go to when it needs a `Logger`.
//- Dart limitation: the provide function isn't const so it cannot be used in an annotation.
- var __andProvideFn = _docsFor == 'dart' ? '' : 'and <i>provide</i> function';
- var __andProvideFn = _docsFor == 'dart' ? '' : 'and <i>provide</i> object literal';
#provide
:marked
### The *Provider* class !{__andProvideFn}
@ -519,31 +519,12 @@ code-example(format="nocode").
+makeExample('dependency-injection/ts/app/providers.component.ts','providers-1')
:marked
This is actually a short-hand expression for a provider registration that creates a new instance of the
[Provider](../api/core/Provider-class.html) class.
This is actually a short-hand expression for a provider registration using the _provider_ object literal.
+makeExample('dependency-injection/ts/app/providers.component.ts','providers-2')
block provider-function-etc
:marked
The [provide](../api/core/provide-function.html) function is the typical way
to create a `Provider`:
+makeExample('dependency-injection/ts/app/providers.component.ts','providers-3')
:marked
Or we can declare a provider in an _object literal_ and skip the `provide` function.
+makeExample('dependency-injection/ts/app/providers.component.ts','providers-3a')
:marked
Pick the syntax that you prefer. They all do the same thing.
+makeExample('dependency-injection/ts/app/providers.component.ts','providers-3a')
block provider-ctor-args
- var _secondParam = 'provider definition object';
:marked
In each syntax, we supply two types of values.
//- var _secondParam = _docsFor == 'dart' ? 'named parameter, such as <code>useClass</code>' : 'provider definition object';
:marked
The first is the [token](#token) that serves as the key for both locating a dependency value

5
public/docs/ts/latest/guide/router-deprecated.jade
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@ -351,7 +351,7 @@ figure.image-display
Providing the router providers at the root makes the Component Router available everywhere in our application.
.l-sub-section
:marked
Learn about providers, the `provide` function, and injected services in the
Learn about providers, the `provide` object literal, and injected services in the
[Dependency Injection chapter](dependency-injection.html).
:marked
### The *AppComponent* shell
@ -1472,8 +1472,7 @@ code-example(format=".", language="bash").
We can go old-school with the `HashLocationStrategy` by
providing it as the router's `LocationStrategy` during application bootstrapping.
First, import the `provide` symbol for Dependency Injection and the
`Location` and `HashLocationStrategy` symbols from the router.
Import the `LocationStrategy` and `HashLocationStrategy` symbols from `@angular/common`.
Then *override* the default strategy defined in `ROUTE_PROVIDERS` by
providing the `HashLocationStrategy` later in the `bootstrap` providers array argument: