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Javascript merge table cell example code_javascript skills

WBOY
WBOYOriginal
2016-05-16 15:22:211297browse

This article introduces you to a code example from the Internet that can merge cells. Let’s share it with you. I hope it can bring some help to friends in need.
The code example is as follows:

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8"/>
<title>表格单元格合并代码</title>
<script type="text/javascript"> 
function autoRowSpan(tb,row,col){ 
 var lastValue=""; 
 var value=""; 
 var pos=1; 
 for(var i=row;i<tb.rows.length;i++){ 
 value=tb.rows[i].cells[col].innerText; 
 if(lastValue==value){ 
  tb.rows[i].deleteCell(col); 
  tb.rows[i-pos].cells[col].rowSpan=tb.rows[i-pos].cells[col].rowSpan+1; 
  pos++; 
 }
 else{ 
  lastValue=value; 
  pos=1; 
 } 
 } 
} 
window.onload=function(){
 var tb=document.getElementById("tb");
 autoRowSpan(tb,0,0)
}
</script>
</head>
<body>
<table id="tb" border="1">
 <thead>
 <tr >
  <td>国家</td>
  <td>地区</td>
 </tr>
 </thead>
 <tr>
 <td>中国</td>
 <td>河南</td>
 </tr>
 <tr>
 <td>中国</td>
 <td>四川</td>
 </tr>
 <tr>
 <td>中国</td>
 <td>北京</td>
 </tr>
 <tr>
 <td>美国</td>
 <td>纽约</td>
 </tr>
 <tr>
 <td>美国</td>
 <td>洛杉矶</td>
 </tr>
 <tr>
 <td>英国</td>
 <td>伦敦</td>
 </tr>
</table>
</body>
</html>

I am sharing a paragraph with you: 

<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<title>合并表格</title> 
<script> 
/////////////////////////////////////////////// 
//功能：合并表格 
//参数：tb－需要合并的表格ID 
//参数：colLength－－需要对前几列进行合并，比如， 
//想合并前两列，后面的数据列忽略合并，colLength应为2 
//缺省表示对全部列合并 
//data:2011.11.06 
/////////////////////////////////////////////// 
function uniteTable(tb,colLength){ 
//检查表格是否规整 
if(!checkTable(tb)) return; 
var i=0; 
var j=0; 
var rowCount=tb.rows.length; //行数 
var colCount=tb.rows[0].cells.length; //列数 
var obj1=null; 
var obj2=null; 
//为每个单元格命名 
for(i=0;i<rowCount;i++){ 
for(j=0;j<colCount;j++){ 
tb.rows[i].cells[j].id="tb__" + i.toString() + "_" + j.toString(); 
} 
} 
//逐列检查合并 
for(i=0;i<colCount;i++){ 
if(i==colLength) return; 
obj1=document.getElementById("tb__0_"+i.toString()) 
for(j=1;j<rowCount;j++){ 
obj2=document.getElementById("tb__"+j.toString()+"_"+i.toString()); 
if(obj1.innerText==obj2.innerText){ 
obj1.rowSpan++; 
obj2.parentNode.removeChild(obj2); 
}else{ 
obj1=document.getElementById("tb__"+j.toString()+"_"+i.toString()); 
} 
} 
} 
} 

///////////////////////////////////////// 
//功能：检查表格是否规整 
//参数：tb－－需要检查的表格ID 
//data: 2011.11.06
///////////////////////////////////////// 
function checkTable(tb){ 
if(tb.rows.length==0) return false; 
if(tb.rows[0].cells.length==0) return false; 
for(var i=0;i<tb.rows.length;i++){ 
if(tb.rows[0].cells.length!=tb.rows[i].cells.length) return false; 
} 
return true; 
} 
</script> 
</head> 
<body> 
<table width="400" border="1" id="table1"> 
<tr> 
<td>a</td> 
<td>for</td> 
<td>100</td> 
<td>200</td>
<td>1</td> 
</tr> 
<tr> 
<td>a</td> 
<td>for</td> 
<td>100</td> 
<td>300</td> 
<td>2</td> 
</tr> 
<tr> 
<td>a</td> 
<td>if</td> 
<td>100</td> 
<td>200</td> 
<td>3</td> 
</tr> 
<tr> 
<td>a</td> 
<td>if</td> 
<td>300</td> 
<td>230</td> 
<td>4</td> 
</tr> 
<tr> 
<td>a</td> 
<td>if</td> 
<td>320</td> 
<td>230</td> 
<td>5</td> 
</tr> 
</table> 
<br><input type="button" value="合并表格" onClick="uniteTable(table1,4)"> 
</body> 
</html>

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

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