组件更新生命周期ReactJS

Question

Stuck with one problem.

I have parent component for example <Parent /> . In render method of this parent component i'm rendering cards for example <CardItem /> .

And in this <CardItem /> component i have <IconComponent/> .

So the main problem is:
When i'm trying to use componentWillUpdate / did in <IconComponent/> i see props for all components.

For example I will render 5 <CardItem /> components and once one of 5 components updated i will have 5 line's in my console log.

Question : How to catch only one component which was updated?

Answer 1

I think the best solution can use componentWillReceiveProps(nextProps) as will be giving you the new Props as that component and can then do whatever ever you want. for more detail check react lifecycle