From: https://stackoverflow.com/a/41299263/722367 It's worth to mentioned that if someone encounter on error "Cannot find name require" after applying your solution then needs to add "node" type inside "types" property in tsconfig.app.ts file. << "types": ["node"] >>.

app-version.component.ts

const { version: appVersion } = require('../../package.json')
// this loads package.json
// then you destructure that object and take out the 'version' property from it
// and finally with ': appVersion' you rename it to const appVersion

@Component({
  selector: 'stack-overflow',
  templateUrl: './stack-overflow.component.html'
})
export class StackOverflowComponent {
  public appVersion

  constructor() {
    this.appVersion = appVersion
  }
}