February 2019
Intermediate to advanced
204 pages
4h 52m
English
Content preview from Redux Quick Start Guide
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reselect
reselect (https://github.com/reduxjs/reselect) is an external library for Redux that helps to build selectors. The library has become de-facto standards for creating selectors in the frontend echo-system.
In our application, one of the use cases where we need to use a selector is to store login information about the user. If a user signs in using credentials, we create a session for the user for a certain interval. This is very basics of authentication and authorization mechanisms. Let's say, if a user has entered the credentials correctly, then we save a isLoggedIn flag in store to indicate the user is logged in. Every time a user opens our application, we try to check for these props, and if it is true, we redirect the user to ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.