Angular · question
Question 13 of 89
How do you inject one service into another?
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Re-explain
Services can depend on other services through constructor injection:
@Injectable({
providedIn: 'root'
})
export class LoggerService {
log(message: string): void {
console.log(message);
}
}
@Injectable({
providedIn: 'root'
})
export class DataService {
constructor(private logger: LoggerService) {}
getData(): any[] {
this.logger.log('Getting data...');
return [];
}
}
Important: Avoid circular dependencies where Service A depends on Service B and Service B depends on Service A.
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