meta tags angular

gistfile1.txt

private setTitle(title: string) {
  let fullTitle = this.config.seo.title;
  if (title && title.length) {
    fullTitle = `${title} - ` + this.config.seo.title;
  }

  this.titleService.setTitle(fullTitle);

  if (this.isNode) {
    this.metaService.addTags([
      {name: 'twitter:title', content: fullTitle},
      {name: 'twitter:image:alt', content: fullTitle},
      {property: 'og:title', content: fullTitle},
    ]);
  }

}