类型'typeof ...'不存在TypeScript'...' [英] TypeScript '...' does not exist on type 'typeof ...'

问题描述

我有这段代码，无论尝试如何，都无法传递以下错误.

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

错误: 属性'EmailValidator'在'typeof UserValidators'类型上不存在.

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

代码:

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 {};
  }
}

这是我尝试注入EmailValidator的方式:

This is how I try to inject the EmailValidator:

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

推荐答案

您应该创建此类的实例才能访问它，如下所示:

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

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

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