如果有空值或特定值，如何隐藏表格行答案

【问题标题】：How do I hide a table row if there is a null value or a specific value如果有空值或特定值，如何隐藏表格行
【发布时间】：2021-05-18 11:29:47
【问题描述】：

我不是一个 javascript 编码员，但我正在尝试写一些东西来让我的工作更轻松...

我有一个数据表。表格的第三个单元格 ('offersTable') 是一个显示标志，它可以是“Y”、“N”或为空。表格的来源不完整，这就是有时单元格为空（null）的原因。

我正在尝试编写一个小脚本，该脚本将遍历表，然后在单元格为“N”或空值时将行设置为隐藏。这样，只剩下带有“Y”的行。

请问有人可以帮我吗？我想解决这个问题！

抱歉，我应该包含我的代码...

<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>

【问题讨论】：

你应该先尝试自己做。如果您遇到困难，请在此处发布您的问题。

标签： javascript css row hide

【解决方案1】：

<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>

【讨论】：

René - 非常感谢您的回复 - 您的解决方案运行良好，感谢您的帮助。有没有办法可以应用您的代码，但不能将规则应用到标题行？另外，我想让它特定于表格，因为我可能有空间在它下面放第二个表格。非常感谢。
我做到了，但要使其特定于表，解决方案也必须是特定于表的。你必须自己编码，最好告诉我你不明白的地方，这样更容易提供帮助。
我已将代码修改为从第 1 行开始（以便保留标题）。您的解决方案现在完美运行。我将尝试解决如何使其特定于表。 René，再次感谢您的帮助。

【解决方案2】：

我可能会尝试 css: display: hidden;还可以查看此网站或在发布前进行一些研究。 https://salesforce.stackexchange.com/questions/122023/hide-html-table-rows-if-outputfield-is-null-or-0希望对您有所帮助！

【讨论】：

【解决方案3】：

看不到你的代码很困难，但我知道这个用js的解决方案：

for (i in document.querySelectorAll('td')) {
        if (document.querySelectorAll('td')[i].textContent == 'N' || document.querySelectorAll('td')[i].textContent == 'null' ) {
            document.querySelectorAll('td')[i].remove()
        }
    }

我使用“remove”只是为了演示它，但您可以使用 style.property...

【讨论】：

不要将for in 用于元素集合。见stackoverflow.com/a/66210052/1175966

【解决方案4】：

我选择了这个选项，因为它运行良好，完全按照我想要的方式运行。非常感谢 René Datenschutz 提供的解决方案。

<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>

【讨论】：