React components as arrow or non arrow

[ithilbor]

Hi, i've already researched the differences between arrow and non arrow function but i didn't get why in the react docs they don't use arrow functions to define new components? Can you suggest me when and why to use arrow and normal functions?
Thanks in advance.

[lucferrario]

For what i know up to now, i believe it’s more a preference. It only makes a difference if you’re using class components and functional components.

[devntv]

i think they follow the pattern in a part of that source.