TypeScript '...' does not exist on type 'typeof ...'

Question

I have this piece of code that whatever I try, I can not get passed the following error.

Error: Property 'EmailValidator' does not exist on type 'typeof UserValidators'.

Code:

import {EMAIL_REGEX} from '../constants'; import {Control} from 'angular2/common';  export interface IUserValidators {   EmailValidator(control: Control) : Object; }  export class UserValidators implements IUserValidators {   EmailValidator(control: Control) : Object {     if (!control.value) {       return {         required: true       };     } else if (control.value) {       if (!new RegExp(EMAIL_REGEX).test(control.value)) {         return {           invalid: true         };       }     }     return {};   } } 

This is how I try to inject the EmailValidator:

this.fb.group({       email: ['', UserValidators.EmailValidator] }); 

Answer 1

You should create an instance of this class to be able to access it, like this:

var userValidators : IUserValidators = new UserValidators(); userValidators.EmailValidator(ctrl);