October 2015
Beginner to intermediate
246 pages
4h 55m
English
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Reactive independent processes within an application
Let's imagine an application that loads the iris dataset and returns the mean and median of numeric variables based upon the species selected. With the elements seen so far, the output generation process would consist of the following:
- Load the
irisdataset - Subset the dataset with the species selected
- Calculate the mean for each variable
- Calculate the median for each variable
- Output the mean and median
As it has been explained before, every reactive element (like outputs) are re-executed whenever an input changes. So, in this case, these five processes would be in constant re-execution.
However, there is an evident issue in this situation: the dataset is always the same one, so the exact same operation ...
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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.