Error: No provider for Number!

[Bernd Wachter]

Hello,

i have this Class in my Angular 4 Project when i call this function from another Service class

let newItem = this.item(id, name, price, quantity, data, imagePath);

and want to give the Parameters to the Item Class

i become always the Error:

ERROR Error: Uncaught (in promise): Error: No provider for Number!

import { Injectable } from '@angular/core';

@Injectable()

export class Item {

constructor(private id: number,

private articleId: string,

private name: string,

private price: string,

private quantity: number,

private data: string,

private imagePath: string){}

}

what i do wrong here ?

i want to give the Parameters to the Item Class and make there some Calculations
and want to give a Array with the calculated Data back...

Thanks for help

Benny

[Oussama Dinia]

you need to add the service to the providers array in your module definition. 

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[Oussama Dinia]

i gave wrong answers just looked back at the question, sorry about that 

[Sander Elias]

Hi Benny,

The constructor is used by Angular to inject dependencies into a service. You can't use that to 'set up' your vars. Create another class, and use a method in your service make a factory out of that.

Regards

Sander