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How to traverse the contents of all cells in a Table using JS and jQuery_javascript skills

WBOYOriginal: 2016-05-16 15:27:29926browse

The example in this article describes the method of traversing the contents of all cells in the Table using JS and jQuery. Share it with everyone for your reference, the details are as follows:

Use JS to traverse the contents of all cells in the Table . You can use the following JS code to achieve this:

function GetInfoFromTable(tableid) {
 var tableInfo = "";
 var tableObj = document.getElementById(tableid);
 for (var i = 0; i < tableObj.rows.length; i++) { //遍历Table的所有Row
  for (var j = 0; j < tableObj.rows[i].cells.length; j++) { //遍历Row中的每一列
   tableInfo += tableObj.rows[i].cells[j].innerText; //获取Table中单元格的内容
   tableInfo += " ";
  }
  tableInfo += "\n";
 }
 return tableInfo;
}

The parameter of this method is the id that uniquely identifies the Table, which can be obtained using the document object

jQuery traverses the contents of td in tr in Table:

1. $("#trID td").text() gets the value of td in trID and returns a string.

2. $("#trID").children gets all tds under a trID, and then traverses $("#trID").children and uses .eq(index).text() to get the value in td;

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<htmlxmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<metahttp-equiv="Content-Type"content="text/html; charset=gb2312"/> 
<title>无标题文档</title> 
<scriptlanguage="javascript"src="jquery-1.6.2.min.js"type="text/javascript"></script> 
<scriptlanguage="javascript"> 
$(document).ready(function() { 
  $("#table a").each(function (){ 
  this.onclick = function(){ 
   var thisObj = this.parentNode.parentNode; 
   var a = $(thisObj).children(); 
   var arr = new Array(); 
   var laber = $("#xiugai label"); 
   for(var i=0;i<a.length;i++){ 
    arr[arr.length] = a.eq(i).text(); 
   } 
   for(var i=0;i<laber.length;i++){ 
    laber.eq(i).text(arr[i]); 
   } 
   $("#table").hide(); 
   $("#xiugai").show(2000) 
  } 
 }); 
}); 
function fanhui(){ 
 $("#table").show(2000); 
 $("#xiugai").hide(2000);  
} 
</script> 
</head> 
<body> 
<divid ="table"> 
<tablewidth="470"border="0"cellspacing="0"cellpadding="0"> 
 <trid="tr1"> 
 <td>id</td> 
 <td>名字</td> 
 <td>密码</td> 
 <td>操作</td> 
 </tr> 
 <trid="tr2"> 
 <td>1</td> 
 <td>张三</td> 
 <td>12</td> 
 <td><ahref="#">删除</a></td> 
 </tr> 
 <trid="tr3"> 
 <td>2</td> 
 <td>李四</td> 
 <td>34</td> 
 <td><ahref="#">删除</a></td> 
 </tr> 
 <trid="tr4"> 
 <td>3</td> 
 <td>王五</td> 
 <td>56</td> 
 <td><ahref="#">删除</a></td> 
 </tr> 
 <trid="tr5"> 
 <td>4</td> 
 <td>六子</td> 
 <td>78</td> 
 <td><ahref="#">删除</a></td> 
 </tr> 
</table> 
</div> 
<divid ="xiugai"style="display:none; background-color:#FFC; height:360px; width:260px"> 
 ID：<label></label><br/> 
 姓名:<label></label><br/> 
 密码:<label></label><br/> 
 <buttononclick="fanhui()">返回</button> 
</div> 
</body> 
</html>

I hope this article will be helpful to everyone in JavaScript programming.

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