问显示从会话到html表的数组数据

EN

var arrData=[];               
$("#checkout").on('click',function(){

$("#table tr").each(function(){
    var currentRow=$(this);

    var col1_value=currentRow.find("td:eq(0)").text();
    var col2_value=currentRow.find("td:eq(1)").text();
    var obj={};

    obj.col1=col1_value;
    obj.col2=col2_value;

    arrData.push(obj);
   sessionStorage.myArrData=JSON.stringify(arrData);
 });
console.log(arrData);

});

<table class="table table-checkout" id="table">
<thead>
  <tr>
    <th>Item</th>
    <th>Quantity</th>
  </tr>
</thead>
<tbody>
</tbody>

var arrData = JSON.parse(sessionStorage.myArrData);