May 2017
Intermediate to advanced
348 pages
7h 34m
English
Content preview from Learning React
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Chapter 4. Pure React
In order to understand how React runs in the browser, we will be working purely with React in this chapter. We will not introduce JSX, or JavaScript as XML, until the next chapter. You may have worked with React in the past without ever looking at the pure React code that is generated when we transpile JSX into React. You can successfully use React without looking at pure React. However, if you take the time to understand what is going on behind the scenes, you will be more efficient, especially when it comes time to debug. That is our goal in this chapter: to look under the hood and understand how React works.
Page Setup
In order to work with React in the browser, we need to include two libraries: React and ReactDOM. React is the library for creating views. ReactDOM is the library used to actually render the UI in the browser.
We also need an HTML element that ReactDOM will use to render the UI. You can see how the scripts and HTML elements are added in Example 4-1. Both libraries are available as ...
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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.
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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.