sort-comp doesn't recognize instance variables declared without explicit value

[ericgio]

Thanks for a very useful library. Apologies if I'm missing something obvious here, but it seems that instance variables are not recognized as such unless a value is explicitly assigned.

Given this sort-comp rule

"react/sort-comp": [2, {
  "order": [
    "state",
    "instance-variables",
    "static-methods",
    "lifecycle",
    "render",
    "everything-else"
  ],
}],

and this class definition

class MyComponent extends React.Component {
  state = {};
  foo;
  static propTypes;

  render() {
    return null;
  }
}

I get this error:

error  foo should be placed after render  react/sort-comp

Changing foo; to foo = undefined; solves the problem, but the behavior is confusing to me.

[ljharb]

Seems like a bug, to be sure.

[ericgio]

Thanks guys!