Dynamic Rows/SubRows via jQuery

Back in January I started to learn jQuery for more sophisticated client-side interactions. One problem I was researching was a client-side solution for dynamically adding or removing data entry rows within a table without making requests back to the server (even Ajax) just for rendering:Watch movie online John Wick: Chapter 2 (2017)

Dynamic Rows using jQuery

Dynamic Rows using jQuery

My quick-and-dirty prototype:
http://jsfiddle.net/short000/YFThf/
…was my first attempt at exploring jQuery. I later cleaned up the code and also pulled formatting out of the table and into CSS. I found jsFiddle to be a great tool for prototyping and testing jQuery.