Category "react-lifecycle"

I want to change state of the component without reloading metro in react-native

so basically i have bunch of apps in my application as you can see in image In my app it check if application is installed or not, if its installed its shows op

componentDidMount affects other component

I have a price counter component. When I try to decrease a product qty to 0 it is deleted successfully but it affects the following product's qty and gives it 0

Call api before first render in functional component in React.js

If I want to call API after the first rendering of component, I know we have useEffect hook to call the API method. (I am talking about functional components on

What does it change to declare a constant above or bellow a React functional component?

My question is what does it change to declare a constant above or bellow a React functional component (or a class component also) ? for example what is the diff