Meet JSX…Again!

As you’ve probably noticed by now, we’ve been using a lot of JSX. But we really haven’t taken a good look at what JSX actually is. How does it work? Why don’t we just call it HTML? What quirks does it have up its sleeve? In this chapter, we answer all those questions and more! We do some serious backtracking (and some forwardtracking) to see what we need to know about JSX in order to be dangerous.

What Happens with JSX?

One of the biggest things we’ve glossed over is trying to figure out what happens with our JSX after we’ve written it. How does it end up as the HTML that you see in the browser? Take a look at the following example, where we define a component called Card:

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