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javascriptcssrowhide

How do I hide a table row if there is a null value or a specific value


I'm not much of a javascript coder, but I'm trying to write something to make my work a little easier...

I have a table of data. The third cell of the table ('offersTable') is a display flag, which will either be 'Y', 'N', or empty. The source for the table is incomplete, which is why sometimes the cell is empty (null).

I'm trying to write a small script that will iterate down through the table, and then set the row to hide if the value if the cell is either 'N' or null. That way, only rows which have a 'Y' remain.

Please can someone help me? I'm going out of my mind trying to work this one out!

Sorry, I should have included my code...

<table id="offersTable">
        <tr>
            <th onclick="sortTable(0)">Lender</th>
            <th onclick="sortTable(1)">Lender Code</th>
            <th onclick="sortTable(2)">Display</th>
            <th onclick="sortTable(3)">Loan Offered</th>
            <th onclick="sortTable(4)">Term Offered</th>
            <th onclick="sortTable(5)">Approval Probability</th>
            <th onclick="sortTable(6)">APR</th>
            <th onclick="sortTable(7)">Monthly Repayment</th>
            <th onclick="sortTable(8)">Total Repayable</th>
        </tr>
        <tr id="lender1">
            <td id="lender1Name"><script>document.getElementById("lender1Name").innerHTML = offers[0].lender_name;</script>
            </td>
            <td id="lender1Code"><script>document.getElementById("lender1Code").innerHTML = offers[0].lender_code;</script>
            </td>
            <td id="lender1Display"><script>document.getElementById("lender1Display").innerHTML = offers[0].display;</script>
            </td>
            <td id="lender1Value"><script>document.getElementById("lender1Value").innerHTML = offers[0].loan_offered;</script>
            </td>
            <td id="lender1Term"><script>document.getElementById("lender1Term").innerHTML = offers[0].term_offered;</script>
            </td>
            <td id="lender1AppProb"><script>document.getElementById("lender1AppProb").innerHTML = offers[0].approval_probability;</script>
            </td>
            <td id="lender1APR"><script>document.getElementById("lender1APR").innerHTML = offers[0].apr;</script>
            </td>
            <td id="lender1MonthlyRepay"><script>document.getElementById("lender1MonthlyRepay").innerHTML = offers[0].monthly_repayment;</script>
            </td>
            <td id="lender1TotalRepay"><script>document.getElementById("lender1TotalRepay").innerHTML = offers[0].total_repayment;</script>
            </td>
        </tr>
        <tr id="lender2">
            <td id="lender2Name"><script>document.getElementById("lender2Name").innerHTML = offers[1].lender_name;</script>
            </td>
            <td id="lender2Code"><script>document.getElementById("lender2Code").innerHTML = offers[1].lender_code;</script>
            </td>
            <td id="lender2Display"><script>document.getElementById("lender2Display").innerHTML = offers[1].display;</script>
            </td>
            <td id="lende2Value"><script>document.getElementById("lender2Value").innerHTML = offers[1].loan_offered;</script>
            </td>
            <td id="lender2Term"><script>document.getElementById("lender2Term").innerHTML = offers[1].term_offered;</script>
            </td>
            <td id="lender2AppProb"><script>document.getElementById("lender2AppProb").innerHTML = offers[1].approval_probability;</script>
            </td>
            <td id="lender2APR"><script>document.getElementById("lender2APR").innerHTML = offers[1].apr;</script>
            </td>
            <td id="lender2MonthlyRepay"><script>document.getElementById("lender2MonthlyRepay").innerHTML = offers[1].monthly_repayment;</script>
            </td>
            <td id="lender2TotalRepay"><script>document.getElementById("lender2TotalRepay").innerHTML = offers[1].total_repayment;</script>
            </td>
        </tr>
        <tr id="lender3">
            <td id="lender3Name"><script>document.getElementById("lender3Name").innerHTML = offers[2].lender_name;</script>
            </td>
            <td id="lender3Code"><script>document.getElementById("lender3Code").innerHTML = offers[2].lender_code;</script>
            </td>
            <td id="lender3Display"><script>document.getElementById("lender3Display").innerHTML = offers[2].display;</script>
            </td>
            <td id="lender3Value"><script>document.getElementById("lender3Value").innerHTML = offers[2].loan_offered;</script>
            </td>
            <td id="lender3Term"><script>document.getElementById("lender3Term").innerHTML = offers[2].term_offered;</script>
            </td>
            <td id="lender3AppProb"><script>document.getElementById("lender3AppProb").innerHTML = offers[2].approval_probability;</script>
            </td>
            <td id="lender3APR"><script>document.getElementById("lender3APR").innerHTML = offers[2].apr;</script>
            </td>
            <td id="lender3MonthlyRepay"><script>document.getElementById("lender3MonthlyRepay").innerHTML = offers[2].monthly_repayment;</script>
            </td>
            <td id="lender3TotalRepay"><script>document.getElementById("lender3TotalRepay").innerHTML = offers[2].total_repayment;</script>
            </td>
        </tr>
        <tr id="lender4">
            <td id="lender4Name"><script>document.getElementById("lender4Name").innerHTML = offers[3].lender_name;</script>
            </td>
            <td id="lender4Code"><script>document.getElementById("lender4Code").innerHTML = offers[3].lender_code;</script>
            </td>
            <td id="lender4Display"><script>document.getElementById("lender4Display").innerHTML = offers[3].display;</script>
            </td>
            <td id="lender4Value"><script>document.getElementById("lender4Value").innerHTML = offers[3].loan_offered;</script>
            </td>
            <td id="lender4Term"><script>document.getElementById("lender4Term").innerHTML = offers[3].term_offered;</script>
            </td>
            <td id="lender4AppProb"><script>document.getElementById("lender4AppProb").innerHTML = offers[3].approval_probability;</script>
            </td>
            <td id="lender4APR"><script>document.getElementById("lender4APR").innerHTML = offers[3].apr;</script>
            </td>
            <td id="lender4MonthlyRepay"><script>document.getElementById("lender4MonthlyRepay").innerHTML = offers[3].monthly_repayment;</script>
            </td>
            <td id="lender4TotalRepay"><script>document.getElementById("lender4TotalRepay").innerHTML = offers[3].total_repayment;</script>
            </td>
        </tr>
</table>

Solution

  • <table>
    <tr>
        <td>Header A</td> 
        <td>Header B</td>
        <td>Filtered to</td>
    </tr>
    <tr>
        <td>Info A 1</td> 
        <td>Info B 1</td>
        <td>Y</td>
    </tr>
    <tr>
        <td>Info A 2</td> 
        <td>Info B 2</td>
        <td>N</td>
    </tr>
    <tr>
        <td>Info A 3</td> 
        <td>Info B 3</td>
        <td>N</td>
    </tr>
    <tr>
        <td>Info A 4</td> 
        <td>Info B 4</td>
        <td>Y</td>
    </tr>
    <tr>
        <td>Info A 5</td> 
        <td>Info B 5</td>
        <td>N</td>
    </tr>
    </table>
    <table>
    <tr>
        <td>Header A</td> 
        <td>Header B</td>
        <td>Filtered to</td>
    </tr>
    <tr>
        <td>Info A 1</td> 
        <td>Info B 1</td>
        <td>Y</td>
    </tr>
    <tr>
        <td>Info A 2</td> 
        <td>Info B 2</td>
        <td>N</td>
    </tr>
    <tr>
        <td>Info A 3</td> 
        <td>Info B 3</td>
        <td>Y</td>
    </tr>
    <tr>
        <td>Info A 4</td> 
        <td>Info B 4</td>
        <td>N</td>
    </tr>
    <tr>
        <td>Info A 5</td> 
        <td>Info B 5</td>
        <td>N</td>
    </tr>
    </table>
    <script>
    function filterTable(table, cellIndex, filter) {
        for (var i = 1, tr; tr = table.rows[i]; i++) { // skip first line
            var third_td = tr.cells[cellIndex];
            tr.style.display = third_td.innerText === filter ? '' : 'none';
        }
    }
    
    function filterAllTables(cellIndex, filter) {
      var tables = document.getElementsByTagName('table');
      if  (tables.length > 0) {
        for (var i = 0, table; table = tables[i]; i++) {
          filterTable(table, cellIndex, filter);
        }
      }
    }
    
    window.addEventListener('load', function () {
      filterAllTables(2, 'Y');
    });
    </script>