Props(short for properties) are a Component's configuration.
Props are how components talk to each other. They are received from above component and immutable as far as the Component receiving them is concerned. Props,on the other hand, make components reusable by giving components
the ability to receive data from the parent component in the form of props.
Props is how Components get their properties. Starting from the top component, every child component gets its props from the parent. In a function component, props is all it gets passed, and they are available by adding props as the function argument:

ES7
How to create Props ...with parameter names ({name, message}).. inside our tweet.js

You must use when you returning function curly-brackets { } like {name}