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https://github.com/angular/angular
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33 lines
1 KiB
Markdown
33 lines
1 KiB
Markdown
@cheatsheetSection
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Dependency injection configuration
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@cheatsheetIndex 9
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@description
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{@target ts}`import {provide} from 'angular2/core';`{@endtarget}
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{@target js}Available from the `ng.core` namespace{@endtarget}
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{@target dart}`import 'package:angular2/core.dart';`{@endtarget}
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@cheatsheetItem
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syntax(ts dart):
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`provide(MyService, {useClass: MyMockService})`|`provide`|`useClass`
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syntax(js):
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`ng.core.provide(MyService, {useClass: MyMockService})`|`provide`|`useClass`
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description:
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Sets or overrides the provider for MyService to the MyMockService class.
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@cheatsheetItem
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syntax(ts dart):
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`provide(MyService, {useFactory: myFactory})`|`provide`|`useFactory`
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syntax(js):
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`ng.core.provide(MyService, {useFactory: myFactory})`|`provide`|`useFactory`
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description:
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Sets or overrides the provider for MyService to the myFactory factory function.
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@cheatsheetItem
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syntax(ts dart):
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`provide(MyValue, {useValue: 41})`|`provide`|`useValue`
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syntax(js):
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`provide(MyValue, {useValue: 41})`|`provide`|`useValue`
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description:
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Sets or overrides the provider for MyValue to the value 41.
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