Three methods for using javascript code in Shiny applications to build faster apps, avoid unnecessary re-rendering, and add components beyond Shiny's limits. Part 2 of a 5 part series on super solutions for Shiny architecture. 

Learn how to use the session argument as a global list for passing parameters between modules in advanced Shiny apps to simplify the objects’ flow in code., organize app content, simplify objects flow logic, decrease bugs, increase speed

SASS is CSS for programmers.  It gives you the building blocks that you’re used to, such as variables, conditions, and loops.  And it helps you organize. CSS will improve the UI of your Shiny apps, and SASS will help you generate CSS. A tutorial...