通过使用javascript的父数组元素对子数组进行分组

-1

我有一个从远程源加载的购物车页面，我想要更改页面的布局。我抓取了购物车物品的所有html（表格），我想遍历这些物品并按物品名称对它们进行分组。页面上的HTML是这样的： -通过使用javascript的父数组元素对子数组进行分组

<table> 
<tbody> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      South Georgia Pocket Tee - Mint/Medium 
     </div> 
    </td> 
    <td class="cart-price"> 
     $15.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[29209762256]" id="updates_29209762256" value="2" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(29209762256); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $30.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      South Georgia Pocket Tee - Navy/Medium 
     </div> 
    </td> 
    <td class="cart-price"> 
     $15.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[29209761936]" id="updates_29209761936" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(29209761936); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $15.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      South Georgia Pocket Tee - Navy/Small 
     </div> 
    </td> 
    <td class="cart-price"> 
     $15.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[29209761872]" id="updates_29209761872" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(29209761872); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $15.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Crimson with Navy/Large 
      <br /> 
      Town/City: 
      ohio 
      <br> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35347518736]" id="updates_35347518736" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35347518736); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Crimson with Navy/Large 
      <br /> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35347518736]" id="updates_35347518736" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35347518736); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Crimson with Navy/Small 
      <br /> 
      Town/City: 
      ohio 
      <br> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35345344848]" id="updates_35345344848" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35345344848); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 

    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Crimson with Navy/Small 
      <br /> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35345344848]" id="updates_35345344848" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35345344848); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Navy with Red/Medium 
      <br /> 
      Town/City: 
      ohio 
      <br> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35347517136]" id="updates_35347517136" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35347517136); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Navy with Red/Medium 
      <br /> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35347517136]" id="updates_35347517136" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35347517136); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Red with Ice Blue/XLarge 
      <br /> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35347521872]" id="updates_35347521872" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35347521872); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Sage With Ice Blue/XLarge 
      <br /> 
      Town/City: 
      ohio 
      <br> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[41628245584]" id="updates_41628245584" value="1" onfocus="this.select();"/> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(41628245584); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - Sage With Ice Blue/XLarge 
      <br /> 

     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[41628245584]" id="updates_41628245584" value="1" onfocus="this.select();" /> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(41628245584); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
<tr> 
    <td class="cart-item"> 
     <div class="cart-title"> 
      Town Specific Short Sleeve Tee - White with Red/Medium 
      <br /> 
     </div> 
    </td> 
    <td class="cart-price"> 
     $16.00 
    </td> 
    <td class="cart-quantity"> 
     <input type="text" class="cart-qty" size="4" name="updates[35347518416]" id="updates_35347518416" value="1" onfocus="this.select();" /> 
    </td> 
    <td class="cart-remove"> 
     <a href="#" onclick="remove_item(35347518416); return false;"><i class="icon-trash icon-2x"></i></a> 
    </td> 
    <td class="cart-total"> 
     $16.00 
    </td> 
</tr> 
</tbody>

我使用JavaScript来遍历`输入代码表中的行，并通过“购物车项目”分裂的项目。我再分割字符串转换成标题，颜色，大小和镇

var full_array = new Array(); 
var item_array = new Array(); 
var variant_array = new Array(); 

$('.cart-item').each(function() { 
    var split_string = $(this).find(' .cart-title').html().split(' - '); 
    if (split_string[0] != 'remove') { 
     item_array['name'] = split_string[0]; 
     var split_variant = split_string[1].split('/'); 
     variant_array['colour'] = split_variant[0]; 
     var split_size = split_variant[1].split('<br>'); 
     variant_array['size'] = split_size[0]; 
     variant_array['town'] = split_size[1]; 
     item_array['value']=variant_array; 
     full_array.push(item_array); 
     item_array = []; 
     variant_array = [];   
    }

这使我有类似这样的元素数组：

array{ name:"South Georgia Pocket Tee" 
    value:[colour: "Navy",size: "Small", town: undefined]}

我想要做的是组所有的父元素所以我可以循环它们，并用新的调整后的html代替当前的购物车html。所以车看起来像这 -

镇具体短袖T

深红与海军/大：1个
深红与海军/大（镇伦敦）：1
海军与红/介质：1
海军以红色/培养基（镇-曼彻斯特）：1

等等等等

我该如何对数组进行分组，以便使用JavaScript来迭代和替换html？任何帮助非常感谢，我整个下午都在敲我的头撞在墙上这个

来源

2017-10-06 Barry Watts

我整理了这一点，每个循环改变原来这个

 if(split_variant[0].search('<br>')) { 
      var split_size = split_variant[1].split('<br>'); 
      variant_array['size'] = split_size[0]; 
      variant_array['town'] = split_size[1]; 
     }else{ 
      variant_array['size'] = split_variant[1]; 
     } 
     item_array['value']= new Array(); 
     item_array['value'].push(variant_array); 
     full_array.push(item_array);

然后我跑这个功能

full_array.forEach(function(value) { 
    var existing = output.filter(function(v, i) { 
     return v.name == value.name; 
    }); 
    if (existing.length) { 
     var existingIndex = output.indexOf(existing[0]); 
     output[existingIndex].value = output[existingIndex].value.concat(value.value); 
    } else { 
     if (typeof value.value == 'string') 
      value.value = [value.value]; 
     output.push(value); 
    } 
});

和输出然后有分组数组，有点杂乱，但做的工作。

来源

2017-10-09 08:36:41

通过使用javascript的父数组元素对子数组进行分组

回答

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