Javascript 数组类型输入返回第一个数组值，然后在克隆tr后返回全部

//我的表单（Form.blade.php） 我试图从表单中克隆多个tr的输入数据中获取数组数据，但它返回的是数组数据，而不仅仅是第一个数组值。如下所示：

                        <!-- /.card-header -->
                        <div class="card-body">
                            <table id="example2" class="table table-bordered table-hover">
                                <thead>
                                <tr>
                                    <th>Description</th>
                                    <th>COA</th>
                                    <th>Amount</th>
                                    <th>Credit/Credit</th>
                                </tr>
                                </thead>
                                {{ Form::open(['action'=>'JournalController@store','method'=>'post']) }}
                                <tbody>
                                    <tr>
                                        <td>
                                            <div class="input-group">
                                                {!!  Form::text('descriptions[]', null , array_merge(['class' => 'form-control','placeholder'=>'Enter Journal Description'])) !!}
                                            </div>
                                        </td>
                                        <td>
                                            <div class="input-group">
                                                {!!  Form::select('coas[]', $coa->pluck('name','id'),null, array_merge(['class' => 'form-control', 'placeholder' => 'Select COA'])) !!}
                                            </div>
                                        </td>
                                        <td>
                                            <div class="input-group">
                                                {!!  Form::number('amounts[]', null , array_merge(['class' => 'form-control'])) !!}
                                            </div>
                                        </td>
                                        <td>
                                            <div class="input-group">
                                                {!!  Form::select('debit_credits[]',['Debit','Credit'],null, array_merge(['class' => 'form-control', 'placeholder' => 'Journal Type'])) !!}
                                            </div>
                                        </td>
                                    </tr>
                                </tbody>
                                <tfoot>
                                    <tr>
                                        <td colspan="4" class="text-right">
                                            <div class="card-body">
                                                {{ Form::submit('Register Journals',['class'=>'btn btn-info']) }}
                                            </div>                                            
                                        </td>
                                    </tr>
                                </tfoot>
                                {{ Form::close() }}
                            </table>

我提交表单后希望显示为输出的内容

array:5 [▼  /what I am expecting to see:

  "_token" => "tQd6C56gZQofuOcEUOi5yLztEOem8CsS0J4OBp5J"
  "descriptions" => array:1 [▼
    0 => somedat,
    1 => somedata,
    2 => somedate
  ]
  "coas" => array:1 [▼
     0 => somedat,
     1 => somedata,
     2 => somedate
  ]
  "amounts" => array:1 [▼
      0 => somedat,
     1 => somedata,
     2 => somedate
  ]
  "debit_credits" => array:1 [▼
      0 => somedat,
     1 => somedata,
     2 => somedate
  ]
]

请让我知道我犯了什么错误

array:5 [▼
  "_token" => "tQd6C56gZQofuOcEUOi5yLztEOem8CsS0J4OBp5J"
  "descriptions" => array:1 [▼
    0 => null
  ]
  "coas" => array:1 [▼
    0 => null
  ]
  "amounts" => array:1 [▼
    0 => null
  ]
  "debit_credits" => array:1 [▼
    0 => null
  ]
]

array:5 [▼  /what I am expecting to see:

  "_token" => "tQd6C56gZQofuOcEUOi5yLztEOem8CsS0J4OBp5J"
  "descriptions" => array:1 [▼
    0 => somedat,
    1 => somedata,
    2 => somedate
  ]
  "coas" => array:1 [▼
     0 => somedat,
     1 => somedata,
     2 => somedate
  ]
  "amounts" => array:1 [▼
      0 => somedat,
     1 => somedata,
     2 => somedate
  ]
  "debit_credits" => array:1 [▼
      0 => somedat,
     1 => somedata,
     2 => somedate
  ]
]