usually I call api, from componentDidMount and plug it into setState. This process is equivalent to render rendering twice, but if you get api in componetWillMount, you will render render, only once. But this lifecycle is not recommended now, so what"s a better solution to get data asynchronously to render pages
?take a look at this: https://codeshelper.com/q/10.
use the first one. It doesn't matter twice. Based on the DIFF algorithm, only those DOM that need to be updated will be updated
getting api in componetWillMount will render render only once
get data asynchronously render has been executed render twice
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