I18nPluralPipe
pipe
Maps a value to a string that pluralizes the value according to locale rules.
{{ value_expression | i18nPlural : pluralMap [ : locale ] }}
 NgModule
Input value
  value  |  number |    the number to be formatted  |  
Parameters
  pluralMap  |  object |    an object that mimics the ICU format, see http://userguide.icu-project.org/formatparse/messages.  |  
  locale  |  string |    a   Optional. Default is   |  
Usage notes
Example
@Component({
  selector: 'i18n-plural-pipe',
  template: `<div>{{ messages.length | i18nPlural: messageMapping }}</div>`
})
export class I18nPluralPipeComponent {
  messages: any[] = ['Message 1'];
  messageMapping:
      {[k: string]: string} = {'=0': 'No messages.', '=1': 'One message.', 'other': '# messages.'};
}  
    © 2010–2019 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
    https://v7.angular.io/api/common/I18nPluralPipe