Question

我有一个html <table>显示日志，我想循环整个表格，突出显示具有不同值的行中的任何相邻单元格<tr>。

我正在尝试比较特定行中<td>中的任意两个值。我已经设法做了一些事情，但只有2列。

下面是表格结构的html示例代码：

    <table id="coa_history_data">
    <tr>
      <th>old Name</th>
      <th>New Name</th>
      <th>Old Phone</th>
      <th>New Phone</th>
      <th>Old Age</th>
      <th>New Age</th>
    </tr>
    <tbody>
    <tr class="data-in-table">
       <td>Alphy</td>
       <td>Alphy</td>
       <td>015</td> //should be highlited
       <td>016</td> //should be highlited
       <td>23</td> //should be highlited
       <td>24</td> //should be highlited
    </tr>
  <tr>
       <td>Tom</td>
       <td>Tom</td>
       <td>12</td>
       <td>12</td>
       <td>65</td> //should be highlited
       <td>30</td> //should be highlited
    </tr>
  <tr>
       <td>will</td>
       <td>will</td>
       <td>45</td>
       <td>45</td>
       <td>20</td>
       <td>20</td>
    </tr>
  </tbody>
</table>

我的JavaScript代码：

 $("#coa_history_data tbody tr.data-in-table").each(function() {
      var $firstCell = $('td:eq(3)', this);
    var $thirdCell = $('td:eq(4)', this);

    if($firstCell.text() === $thirdCell.text()){

    }else{
       $firstCell.css('backgroundColor','yellow');
        $thirdCell.css('backgroundColor','yellow');  
    }
});

我想提出一些建议，如何处理？

Answer 1

我建议如下所示，以便独立于列数。

http://jsfiddle.net/hA5G8/

<强> JS

$("#coa_history_data tbody tr.data-in-table").each(function () {

    $(this).find('td').each(function (index) {
        var currentCell = $(this);
        var nextCell = $(this).next('td').length > 0 ? $(this).next('td') : null;
        if (index%2==0&&nextCell && currentCell.text() !== nextCell.text()) {
            currentCell.css('backgroundColor', 'yellow');
            nextCell.css('backgroundColor', 'yellow');
        }
    });
});

<强> HTML

<table id="coa_history_data">
    <tr class="data-in-table">
        <th>old Name</th>
        <th>New Name</th>
        <th>Old Phone</th>
        <th>New Phone</th>
        <th>Old Age</th>
        <th>New Age</th>
    </tr>
    <tbody>
        <tr class="data-in-table">
            <td>Alphy</td>
            <td>Alphy</td>
            <td>015</td>//should be highlited
            <td>016</td>//should be highlited
            <td>23</td>//should be highlited
            <td>24</td>//should be highlited</tr>
        <tr class="data-in-table">
            <td>Tom</td>
            <td>Tom</td>
            <td>12</td>
            <td>12</td>
            <td>65</td>//should be highlited
            <td>30</td>//should be highlited</tr>
        <tr class="data-in-table">
            <td>will</td>
            <td>will</td>
            <td>45</td>
            <td>45</td>
            <td>20</td>
            <td>20</td>
        </tr>
    </tbody>
</table>

Answer 2

继承我的解决方案：

<table id="coa_history_data">
    <tr>
      <th>old Name</th>
      <th>New Name</th>
      <th>Old Phone</th>
      <th>New Phone</th>
      <th>Old Age</th>
      <th>New Age</th>
    </tr>
    <tbody>
    <tr class="data-in-table">
       <td>Alphy</td>
       <td>Alphy</td>
       <td>015</td>
       <td>016</td>
       <td>23</td>
       <td>24</td>
    </tr>
  <tr class="data-in-table">
       <td>Tom</td>
       <td>Tom</td>
       <td>12</td>
       <td>12</td>
       <td>65</td>
       <td>30</td>
    </tr>
  <tr class="data-in-table">
       <td>will</td>
       <td>will</td>
       <td>45</td>
       <td>45</td>
       <td>20</td>
       <td>20</td>
    </tr>
  </tbody>
</table>

的JScript：

$("#coa_history_data tbody tr.data-in-table").each(function() {
      var $firstCell = $('td:eq(2)', this);
      var $secondCell = $('td:eq(3)', this);
      var $thirdCell = $('td:eq(4)', this);
      var $fourthCell = $('td:eq(5)', this);
    if($firstCell.text() != $secondCell.text()){
       $firstCell.css('backgroundColor','yellow');
        $secondCell.css('backgroundColor','yellow');  
    }
    if($thirdCell.text() != $fourthCell.text()){
       $thirdCell.css('backgroundColor','orange');
        $fourthCell.css('backgroundColor','orange');  
    }
});

小提琴：http://jsfiddle.net/3CdyH/

Answer 3

好的，您想要突出显示我理解的特定字段<td>。

更好的解决方案是在创建表时进行。

我确定此方法的效果更好，我在此处进行了测试 JsPerf

所以以这种方式创建你的表：

重要提示：当然您将拥有动态值，因此请将其置于 <td>内的值变量中。

    var content = [];
    for (var i=0; i < len; i++){
      if (i==0) //i dont know what is your condition to the tr be 'data-in-table' so change if needs
        class = "data-in-table";
      content.push("<tr class='"+class+"'>         "+
                   "<td>will</td>                  "+
                   "<td>will</td>                  "+
                   "<td>"+value+"</td>             "+
                   "<td>"+value+"</td>             "+
                   "<td class=hlight>"+value+"</td>"+
                   "<td class=hlight>"+value+"</td>"+
                   "</tr>");
    }
    document.getElementById('your_table_wrapper').innerHTML = "<table id=coa_history_data>"+
                                                              "<tr>                       "+
                                                              "<th>old Name</th>          "+
                                                              "<th>New Name</th>          "+
                                                              "<th>Old Phone</th>         "+
                                                              "<th>New Phone</th>         "+
                                                              "<th>Old Age</th>           "+
                                                              "<th>New Age</th>           "+
                                                              "</tr>                      "+
                                                              "<tbody>                    "+
                                                              content.join('')+
                                                              "</tbody>                   "+
                                                              "</table>;

并使用此CSS：

.hlight {
  background-color: yellow;
}

突出显示具有不同值的表列td

3 个答案: