October 2015
Beginner to intermediate
246 pages
4h 55m
English
Content preview from Learning Shiny
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The concept of reactivity
Reactivity is the main concept that underlies the Shiny structure. Basically, this means that an object changes depending on the changes of another object. This concept is intimately related to the input/output relationship. In other words, the output object reacts (changes) whenever the input changes.
For example, let's think of an application that counts the number of words in the phrase that has been passed. It would look similar to this:
In this case, whenever the phrase passed to the textbox changes, the text below the textbox changes. The reaction process automatically and instantly occurs by default. This means that, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.