March 2017
Beginner to intermediate
500 pages
9h 41m
English
Content preview from React and React NativeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Setting component state
In this section, you're going to write some React code that sets the state of components. First, you'll learn about the initial state—this is the default state of a component. Next, you'll learn how to change the state of a component, causing it to re-render itself. Finally, you'll see how new state is merged with existing state.
Initial component state
The initial state of the component isn't actually required, but if your component uses state, it should be set. This is because if the component JSX expects certain state properties to be there and they aren't, then the component will either fail or render something unexpected. Thankfully, it's easy to set the initial component state.
The initial state of a component should ...
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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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