Syntax error on app/app.component.ts - (82,40): error TS2339: Property 'then' does not exist on type 'void'.​​

[John]

Hi there, 

When I start the app with #npm start, the app does not start. It gives the following errors below..........

(1) (82,40): error TS2339: Property 'then' does not exist on type 'void'. 

(2) Parameter 'account' implicitly has an 'any type

The entire  code base of  app/app.component.ts is clean, except the two words from the snippet below are underlined......  "then"  is underlined and   "account" is underlined.

  private removeAcc(index:number){
    this._accountService.remove(index).then(account => console.log(account));
  }

[Sander Elias]

Hi John,

probably, your remove function doesn't return a promise. 

Regards

Sander

[John Kimathi]

Thank you Sanders,

Here below is the remove method of the Promise.

  public remove(index:number){

  if(this._logger)

    this._logger.log('Account deleted: ' + this._accounts[index].title);

  this._accounts.splice(index, 1);

  }

}

and here below is the entire Promise base. Please have a look, advice further.

public getAll():Promise<Array<Account>>{

      return Promise.resolve(this._accounts);

    }

    private _nextId = 3;

    private _accountLimit = 3;

    public create(newAccount:Account){

      return new Promise((resolve,reject) => {

        if(this._accounts.length >= this._accountLimit)

          return reject("Maximum accounts limit reached.");

      newAccount.id = this._nextId++;

      if(this._logger)

        this._logger.log('Account created: ' + newAccount.title);

      this._accounts.push(newAccount);

      resolve(newAccount);

   });

}

  public remove(index:number){

  if(this._logger)

    this._logger.log('Account deleted: ' + this._accounts[index].title);

  this._accounts.splice(index, 1);

  }

}

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ᐧ

[Sander Elias]

Indeed, it does not return a promise. You can't put a .then on a void the error is spot on.

Regards
Sander

[John]

[John]

Hi there,

I have not been able to resolve the error "Property 'then' does not exist on type 'void'".

I here by attach the two files. The file, app.component.ts, is the one which contains the problematic  snippet

below....

  private removeAcc(index:number){

   this._accountService.remove(index).then(account => console.log(account));

}

Any help to get it resolved  highly appreciated.

Thanks & Regards,

John.

 

On Saturday, 10 June 2017 17:34:36 UTC+2, Sander Elias wrote: