1. Introducing React

Ignoring for a moment that web apps today both look and feel nicer than they did back in the day, there is something even more fundamental that has changed. The way we architect and build web apps is very different now. To highlight this, let’s take a look at the app shown in Figure 1-1.

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Figure 1-1 An app.

This app is a simple catalog browser for something. Like any app of this sort, you have your usual set of pages revolving around a home page, a search results page, a details page, and so on. In the following sections, let’s look at the two approaches we have for building this app. Yes, in some mysterious fashion, this ...

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