理解 +补全 else 中的代码。【标 T1 行的代码】

 remove(key: string): any
  remove(key: string, option: OPTION, propkey: string, propvalue: any): any
  remove(key: string, option: OPTION = OPTION.NONE, propkey: string = '', propvalue?: any) {
    if (option === OPTION.ADDORAPPOBJTOARR) {
      //1
      const arr: any[] = goodStorage.get(key, [])
      // 2
      const keyValsOfObj = getValArrOfObj(arr, propkey)
      // 3
      const eleIndex = keyValsOfObj.indexOf(propvalue)
      // 4
      if (eleIndex > 0) {
        arr.splice(eleIndex, 1)
        goodStorage.set(key, arr)
      }
    }else {// T1

    }
}