-import * as validator from 'validator'
+import validator from 'validator'
import { exists, isArray } from './misc'
import { isTestInstance } from '../core-utils'
import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
function isEachUniqueHostValid (hosts: string[]) {
return isArray(hosts) &&
- hosts.length !== 0 &&
hosts.every(host => {
return isHostValid(host) && hosts.indexOf(host) === hosts.lastIndexOf(host)
})