weird interface

how can a class implement this interface

interface I {
  (): void
  type: string
}

interface I {
  (): void
  type: string
}

or a const i accidently did this

const a = () => {}

a.type = 'ok'

const a = () => {}

a.type = 'ok'

and it changed a's type to { (): void; type: string }

1 Reply

Bubbles•4y ago

For a class you can do class X implements I {}