Question

function siradaki() {
  var high = Math.max.apply(Math, $('.sira').map(function() {
    return $(this).text()
  }))
  
  alert(high);
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<table id="myTable">
  <tr class="header">
    <th style="width:10%;">Name</th>
    <th style="width:10%;">Lastname</th>
    <th style="width:10%;">Value</th>
  </tr>

  <tr>
    <td>Deneme</td>
    <td>SDeneme</td>
    <td class="sira">100</td>
  </tr>

  <tr>
    <td>Ornek</td>
    <td>SOrnek</td>
    <td class="sira">150</td>
  </tr>

</table>

<button name="siradaki" id="siradaki" class="btn btn-warning" onclick="siradaki();">Sıradaki Kim ?</button>

此代码有效。但是如何获得Name和Lastname以及最大Value呢？

Answer 1

获取所有行，而不仅仅是.sira单元格中的值，然后对其进行分析。这样，当您找到最大数量时，您将拥有完整的信息。

function siradaki() {
  var max = -Infinity;
  var maxRow;
  $('tbody tr').each(function() {
    var value = parseInt($('.sira', this).text(), 10);
    if (value > max) {
      max = value;
      maxRow = $(this);
    }
  });

  alert(maxRow.text());
}

<html>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<table id="myTable">
  <thead>
    <tr class="header">
      <th style="width:10%;">Name</th>
      <th style="width:10%;">Lastname</th>
      <th style="width:10%;">Value</th>
    </tr>
  </thead>
  <tbody>

    <tr>
      <td>Deneme</td>
      <td>SDeneme</td>
      <td class="sira">100</td>
    </tr>

    <tr>
      <td>Ornek</td>
      <td>SOrnek</td>
      <td class="sira">150</td>
    </tr>
  </tbody>

</table>

<button name="siradaki" id="siradaki" class="btn btn-warning" onclick="siradaki();">Sıradaki Kim ?</button>

</html>

Answer 2

您可以使用rowRDD.foreachPartition(new VoidFunction<Iterator<String () { private static final long serialVersionUID = 1L; @Override public void call(Iterator<String> rowIterator) throws Exception { //prepared statement query String sql = "insert into " + tableName + " (TRANS_AMOUNT,) values (?, ?)"; Connection connection = null; PreparedStatement ps = null; try { connection = DriverManager.getConnection(jdbcDatabaseUrl, jdbcUsername, jdbcPassword); ps = connection.prepareStatement(sql); int count = 0; RowTemplate message = new RowTemplate(); while (rowIterator.hasNext() ) { String recordRow = rowIterator.next(); if (recordRow != null && !recordRow.equals("")) { //populate message object properties message.setProperties(recordRow,kafkaRecorddelimiter); java.util.Date transDate = formatter.parse(trnsDateTime); Timestamp transactionDate = new Timestamp(transDate.getTime()); String transAmount = message.getTransactionAmount() ; ps.setInt(1, Integer.parseInt(transAmount); ps.setTimestamp(2, transactionDate); ps.addBatch(); if(++count % batchSize == 0) ps.executeBatch(); } message.clearProperties(); } ps.executeBatch(); // insert remaining records }获取同级.siblings元素，并使用td获取其文本。将它们存储在字符串中，并以高警惕

.textContent

 var str='';
function siradaki(){
           var high = Math.max.apply(Math, $('tr > .sira').map(function(){
          var a=Object.values($(this).siblings())
           str=a[0].textContent+ " " + a[1].textContent;
                   return $(this).text();
 
})) 
alert (str + " " +high );
			}

Answer 3

function siradaki(){

var value = $('tr td').map(function () {
return parseInt($(this).text(), 10) ? parseInt($(this).text(), 10) :  null;
}).get();

var high = Math.max.apply(Math, value);
alert(high);
 }

尝试不要添加类来获取所有行

Answer 4

尝试按desc顺序按值对列表进行排序，并从列表中获取第一个对象

function siradaki() {
      var high = $('.sira').sort(function(a, b) {
        return $(a).text() < $(b).text()
      })[0];
      
      console.log($(high).closest('tr').find('td:eq(0)').text());
console.log($(high).closest('tr').find('td:eq(1)').text());
console.log($(high).text());
    }

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<table id="myTable">
  <tr class="header">
    <th style="width:10%;">Name</th>
    <th style="width:10%;">Lastname</th>
    <th style="width:10%;">Value</th>
  </tr>

  <tr>
    <td>Deneme</td>
    <td>SDeneme</td>
    <td class="sira">100</td>
  </tr>

  <tr>
    <td>Ornek</td>
    <td>SOrnek</td>
    <td class="sira">150</td>
  </tr>

</table>

<button name="siradaki" id="siradaki" class="btn btn-warning" onclick="siradaki();">Sıradaki Kim ?</button>

Answer 5

您可以尝试这样

function siradaki() {
var arr = [];
  $('.sira').each(function() {
    arr.push($(this).text());
    var Names = $(this).siblings('td').text();
    console.log('Names: '+ Names);
  })
  
  var maxValue = Math.max.apply(Math, arr);

  console.log('maxValue: '+maxValue);
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<table id="myTable">
  <tr class="header">
    <th style="width:10%;">Name</th>
    <th style="width:10%;">Lastname</th>
    <th style="width:10%;">Value</th>
  </tr>

  <tr>
    <td>Deneme</td>
    <td>SDeneme</td>
    <td class="sira">100</td>
  </tr>

  <tr>
    <td>Ornek</td>
    <td>SOrnek</td>
    <td class="sira">150</td>
  </tr>

</table>

<button name="siradaki" id="siradaki" class="btn btn-warning" onclick="siradaki();">Sıradaki Kim ?</button>

Answer 6

只需在这里查看jQuery的同级方法-https://api.jquery.com/siblings/

您可以使用 tr 标记作为参数访问兄弟姐妹，并使用索引来区分名字和姓氏，即0表示姓氏，1表示姓氏。

如何基于列的最大值获取整个行数据？

6 个答案: