[英]inject multiple values using provider to my service constructor - angular2
How can inject multiple values to my service if I have constructor like this 如果我有这样的构造函数,如何向我的服务注入多个值
@Injectable()
export class MyService implements OnInit {
constructor(private http: Http, @Inject('name') @Optional() public name?: string) {
}
and inside AppModule I tried following 在AppModule中,我尝试了以下
...
providers: [
SecurityService, providers:[
{ provide: 'username', useValue: '' },
{ provide: 'http', useValue: Http }
],
..
but I'm getting syntax error in line SecurityService, providers:[
但我在SecurityService, providers:[
行中遇到语法错误SecurityService, providers:[
Cannot find name providers
Just pass in the dependencies as an array (you don't need to destructure it): 只需将依赖项作为数组传递(您无需对其进行解构):
...
providers: [
SecurityService,
[
{ provide: 'username', useValue: '' },
{ provide: 'http', useValue: Http }
],
...
Or go ahead and destructure it for the sake of cleaner code: 或者,为了更简洁的代码而对其进行重构:
...
providers: [
SecurityService,
{ provide: 'username', useValue: '' },
{ provide: 'http', useValue: Http }
...
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