Recently We got an interesting requirement to implement very smooth image zoom functionality. Really it was very smooth zoom behavior when they show it in the demo.
Drupal has a lot of amazing functionalities within it. Revisions are one among them, actually, it helps us to manage the different versions of the node.
We mostly used to export and present the data as a page, block and REST api, but there is one more way to render the views from jquery with the help of ajax.
In Drupal 8's video field there is an option to add different kind of videos like upload, youtube, vimeo, wistia videos to the drupal fields.
ELK Stack is the best tool to visualize the logging data, System generates a lot of logs on each and every seconds. It is not easy to directly get the necessary data from the logs.
Contextual link is a nice addition made into Drupal 7 to favor usability. It offers, quick links to pages performing administrative operations.