Method deleteProperty

packages/reactivity/src/baseHandlers.ts:240–248

(target: object, key: string | symbol)

  }

  deleteProperty(target: object, key: string | symbol) {
    if (__DEV__) {
      warn(
        `Delete operation on key "${String(key)}" failed: target is readonly.`,
        target,
      )
    }
    return true
  }
}

export const mutableHandlers: ProxyHandler<object> =