October 2019
Intermediate to advanced
426 pages
11h 49m
English
Content preview from Learn React Hooks
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Creating reusable selectors
When defining selectors as we have done until now, a new instance of the selector is created every time the component is rendered. This is fine, if the selector function does not do any complex operations and does not maintain internal state. Otherwise, we need to use reusable selectors, which we are going to learn about now.
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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.