How to add translated string to JHipster Angular5 .ts file

Let’s assume we have already language files in /src/main/webapp/i18n/

In .component.ts file import:

import { TranslateService } from '@ngx-translate/core';

Add to constructor:

1	private translateService: TranslateService,

Then translated string is:

const translatedString=this.translateService.instant("global.menu.entities.substitute");