When to use the static keyword before a method in a React class component

Question

I'm use to writing methods in react like so:

class Someclass extends Component{
  ...
  someMethod () => ...
}

Latley I've seen a lot of code with static before the method name:

static someMethod() {...}

1. What's the static for in the context of a JavaScript Class?
2. And in the context of a React component?

Answer 1

Methods are defined on the class´s prototype, static methods are not, they are functions on the class itself. You can call a static method without creating the instance of the class.

More information on the subject here