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Example analysis of js table sorting (support int float date string four data types)

  • 2020-06-03 05:52:59
  • OfStack

This article gives an example of how to sort js tables. Share to everybody for everybody reference. The details are as follows: 


<html>
<head>
<title>SortTable2</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript">
var k=0;
/**//**************************************************************************
 The main method for sorting, there are 3 A parameter, STableTd,iCol,sDataType Are the tables to be sorted ID . 
 The table column number to sort, the data type of the column (supported) int,float,date,string4 Various data types )
**************************************************************************/
function sortTable(sTableId,iCol,sDataType)
{
  var oTable=document.getElementById(sTableId);// Get tabular ID 
  var oTbody=oTable.tBodies[0]; // Get tabular tbody
  var colDataRows=oTbody.rows; // To obtain tbody References to all lines in 

  var aTRs=new Array(); // define aTRs Arrays are used to store tbody In the line 
  for(var i=0;i<colDataRows.length;i++) // Put all the rows in order aTRs An array of 
  {
    aTRs.push(colDataRows[i]);
  }
  /**//***********************************************************************
  sortCol Attributes are extra table Added property to distinguish between two kinds of sequential sorting 
   First sort and then ordered reverse 
  ************************************************************************/
  if(oTable.sortCol==iCol) // Nonfirst sort 
  {
    aTRs.reverse();
  }
  else  // For the first time ordering 
  {
    if(k%2==0) // ascending 
    {
      aTRs.sort(generateCompareTRs(iCol,sDataType));
    }
    else if(k%2==1) // Descending order 
    {
      aTRs.sort(generateCompareTRs1(iCol,sDataType));
    }
  }
  var oFragment=document.createDocumentFragment();  // Create document shards 
  for(var i=0;i<aTRs.length;i++)  // I'm going to sort it out aTRs Array members are, in turn, added to the document fragment 
  {
    oFragment.appendChild(aTRs[i]);
  }
  oTbody.appendChild(oFragment); // Add document fragments to tbody, Display update after sorting is completed  
  oTable.sortCol=iCol;  // Assigns the current column number to sortCol, To distinguish between first sort and non-first sort ,//sortCol The default value is -1
};

// Comparison function, used for sorting between two items 
// ascending 
function generateCompareTRs(iCol,sDataType)
{
  return  function compareTRs(oTR1,oTR2)
  {
    var vValue1=convert(oTR1.cells[iCol].firstChild.nodeValue,sDataType);
    var vValue2=convert(oTR2.cells[iCol].firstChild.nodeValue,sDataType);
    if(vValue1<vValue2)
    {
      return -1;
    }
    else if(vValue1>vValue2)
    {
      return 1;
    }
    else
    {
      return 0;
    }
  };
};
// Descending order 
function generateCompareTRs1(iCol,sDataType)
{
  return  function compareTRs(oTR1,oTR2)
  {
    var vValue1=convert(oTR1.cells[iCol].firstChild.nodeValue,sDataType);
    var vValue2=convert(oTR2.cells[iCol].firstChild.nodeValue,sDataType);
    if(vValue1>vValue2)
    {
      return -1;
    }
    else if(vValue1<vValue2)
    {
      return 1;
    }
    else
    {
      return 0;
    }
  };
};
// Data type conversion function 
function convert(sValue,sDataType)
{
  switch(sDataType)
  {
    case "int":return parseInt(sValue);
    case "float": return parseFloat(sValue);
    case "date":return new Date(Date.parse(sValue));
    default:return sValue.toString();
  }
};
</script>
</head>
<body>
<form name="f1" id="f1" action="" method="post">
<table border="1" id="tblSort" sortCol="-1">
<thead>
 <tr>
  <th onClick="sortTable('tblSort',0);" style="cursor:pointer">Last Name</th>
  <th onClick="sortTable('tblSort',1)" style="cursor:pointer">First Name</th>
  <th onClick="sortTable('tblSort',2,'date')" style="cursor:pointer">Birthday</th>
  <th onClick="sortTable('tblSort',3,'int')" style="cursor:pointer">Silbings</th>
 </tr>
</thead>
<tbody>
 <tr>
  <td>Simth</td>
  <td>John</td>
  <td>7/12/1978</td>
  <td>50nGy/h</td>
 </tr>
 <tr>
  <td>Johnson</td>
  <td>Betty</td>
  <td>5/12/1965</td>
  <td>20nGy/h</td>
 </tr>
 <tr>
  <td>Henderson</td>
  <td>Nathan</td>
  <td>10/15/1977</td>
  <td>130nGy/h</td>
 </tr>
 <tr>
  <td>Willianms</td>
  <td>James</td>
  <td>2/25/1949</td>
  <td>10nGy/h</td>
 </tr>
 <tr>
  <td>Gilliam</td>
  <td>Michael</td>
  <td>7/8/1980</td>
  <td>140nGy/h</td>
 </tr>
 <tr>
  <td>Walker</td>
  <td>Matthew</td>
  <td>6/18/1981</td>
  <td>103nGy/h</td>
 </tr>
</tbody>   
</table>
</form>
</body>
</html>

Hopefully, this article has been helpful in your javascript programming.

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