January 2017
Intermediate to advanced
496 pages
10h 7m
English
Content preview from Mastering React Native
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The component lifecycle
Every React component that is rendered into the DOM goes through a series of steps before and after rendering. As React component developers, we can hook into these steps, called the component lifecycle, in order to perform tasks or check conditions specific to some stage in that lifecycle:
Mounting the component
Before a component is mounted, which means placed into the DOM for the first time, React will look at that component's class to see if it has a method called componentWillMount defined. Should this method exist, React will invoke it. This method is a good place to do things such as set up timers needed by the component ...
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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.