{"type":"rich","version":"1.0","title":"AngularJS showing the difference when using \"track by\" and not using it","author_name":"ry8806","author_url":"https://plnkr.co/users/ry8806","provider_name":"Plunker","provider_url":"https://plnkr.co","html":"<iframe id=\"plnkr_embed_kU6CIfYaIguk8K6GhJXD\" class=\"plnkr_embed_iframe\" style=\"width: 100%; overflow: hidden;\" src=\"https://embed.plnkr.co/plunk/kU6CIfYaIguk8K6GhJXD?autoCloseSidebar&deferRun&show=preview\" width=\"600\" height=\"400\" frameborder=\"0\" scrolling=\"no\"></iframe>","width":600,"height":400,"thumbnail_url":"https://shot.plnkr.co/kU6CIfYaIguk8K6GhJXD.png?d=2017-01-27T10%3A16%3A34.700Z","thumbnail_width":400,"thumbnail_height":300}