Function findIndex

packages/reactivity/src/arrayInstrumentations.ts:97–102

(
    fn: (item: unknown, index: number, array: unknown[]) => boolean,
    thisArg?: unknown,
  )

  },

  findIndex(
    fn: (item: unknown, index: number, array: unknown[]) => boolean,
    thisArg?: unknown,
  ) {
    return apply(this, 'findIndex', fn, thisArg, undefined, arguments)
  },

  findLast(
    fn: (item: unknown, index: number, array: unknown[]) => boolean,