With Shiny, JavaScript, and jQuery, you can build pretty much anything you can think of; moreover, Shiny and jQuery will do a lot of the heavy lifting, which means that fairly minimal amounts of code will be required. In this chapter, we will cover:

• Using JavaScript to read and write to the DOM
• Using JavaScript to send messages between client and server
• Easy JavaScript with the shinyjs package
• Using your own JavaScript with extend Shinyjs
• Listening for events with JavaScript
• Using JavaScript libraries with htmlwidgets