类型“ typeof”的“ className”类型不存在属性“ somemethod”

Question

I am getting a "Property 'searchStaff' does not exist on type 'typeof UserService'." error in my editor when I try to use this api service class. PS. I am new to typescript.

import axios from "axios";
import { Observable } from "rxjs";

class UserService {
  public searchStaff(): Observable<any> {
    return Observable.fromPromise(axios.get("./staffs/search"));
  }
}

export default new UserService();

I am trying to get data from this class.

const result = UserService.searchStaff();

Answer 1

You can directly put export or export default in your declaration. So you can do:

export class UserService {

}

or

export default class UserService {

}

You can find the different methods of using modules for typescript here .

Also, looking at this line of code, const result = UserService.searchStaff(); are you instantiating UserService? If not, then you have to declare searchStaff as static .