{"author_name":"Dimitris Papadimitriou","author_url":"https://stackblitz.com/@dimitris-papadimitriou-chr","height":400,"html":"<iframe src=\"https://stackblitz.com/edit/5122-the-null-object-design-pattern?embed=1\" height=\"400\" width=\"745\"></iframe>","provider_name":"StackBlitz","provider_url":"https://stackblitz.com","title":"5122-the-null-object-design-pattern - StackBlitz","type":"rich","version":"1.0","width":745}