getting td element values of a particular th column using jquery

Question

I've the below html.

<table border="1" class="myTable">
               <tr>
                  <th class="cname">Component</th>
                  <th class="pname">Properties</th>
                  <th class="sname">lqwasb10</th>
                  <th class="sname">lqwasb11</th>
               </tr>
                     <tr>
                     <td class="cname">InventoryManager</td>
                     <td class="pname">maxConcurrentUpdateRetries</td>
                        <td class="pvalue">1</td>
                        <td class="pvalue">1</td>
                     </tr>
                     <tr>
                     <td class="cname">CatalogTools</td>
                     <td class="pname">queryASAFFabrics</td>
                        <td class="pvalue">skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand</td>
                        <td class="pvalue">skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand</td>
                     </tr>
                     <tr>
                     <td class="cname">CatalogTools</td>
                     <td class="pname">loggingDebug</td>
                        <td class="pvalue">false</td>
                        <td class="pvalue">false</td>
                     </tr>
</table>

Have written the below jquery and it is not working.

 $(document).ready(function(){
           $('.myTable th').each(function(){
              var server = $(this).html();
              if(server === 'lqwasb10'){
                 var b10 = $('.myTable tr td pvalue').text();
                 alert(b10);
              }
           });
       });

I expected the b10 could contain the below values in order.

• 1
• skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand
• false

The above code doesn't return anything. I'm a jquery newbie, it would be great if someone can help me with a solution.

Many Thanks in advance.

Answer 1

Assuming that the column you need might not always be the third column, you can use:

var idx;

// Find index of cell with 'lqwasb10'
$('.myTable th').each(function(index) {
  if ($(this).text() === 'lqwasb10') idx = index;
})

// Loop through each cell with the same index
$('.myTable tr').each(function() {
  console.log($(this).find('td:eq('+idx+')').text())
})

 var idx; // Find index of cell with 'lqwasb10' $('.myTable th').each(function(index) { if ($(this).text() === 'lqwasb10') idx = index; }) // Loop through each cell with the same index $('.myTable tr').each(function() { console.log($(this).find('td:eq('+idx+')').text()) }) 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table border="1" class="myTable"> <tr> <th class="cname">Component</th> <th class="pname">Properties</th> <th class="sname">lqwasb10</th> <th class="sname">lqwasb11</th> </tr> <tr> <td class="cname">InventoryManager</td> <td class="pname">maxConcurrentUpdateRetries</td> <td class="pvalue">1</td> <td class="pvalue">1</td> </tr> <tr> <td class="cname">CatalogTools</td> <td class="pname">queryASAFFabrics</td> <td class="pvalue">skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand</td> <td class="pvalue">skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand</td> </tr> <tr> <td class="cname">CatalogTools</td> <td class="pname">loggingDebug</td> <td class="pvalue">false</td> <td class="pvalue">false</td> </tr> </table> 

Note that there's a small typo in your code example in your question. You have an extra <tr> after the first body row.

Answer 2

In order to print all cells belonging to the third column you can select these cells:

$('.myTable tr:gt(0) td:nth-child(3)')

 $('.myTable tr:gt(0) td:nth-child(3)').each(function(){ var b10 = $(this).text(); console.log(b10); }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table border="1" class="myTable"> <tr> <th class="cname">Component</th> <th class="pname">Properties</th> <th class="sname">lqwasb10</th> <th class="sname">lqwasb11</th> </tr> <tr> <td class="cname">InventoryManager</td> <td class="pname">maxConcurrentUpdateRetries</td> <td class="pvalue">1</td> <td class="pvalue">1</td> </tr> <tr> <tr> <td class="cname">CatalogTools</td> <td class="pname">queryASAFFabrics</td> <td class="pvalue">skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand</td> <td class="pvalue">skuType="ASAF_FABRIC" AND NOT basicColor IS NULL ORDER BY dynamicAttributes.fabricpriceband, basicColor, dynamicAttributes.fabrictype, dynamicAttributes.asafpattern, dynamicAttributes.asaffabricbrand</td> </tr> <tr> <td class="cname">CatalogTools</td> <td class="pname">loggingDebug</td> <td class="pvalue">false</td> <td class="pvalue">false</td> </tr> </table>