分组依据HTML中的SQL查询-GroupbyLikeSQLQueryinHTML

I have a table for example:

我有一张桌子例如:

head1     head2      head3
x         1          BLA
y         2          BLA
z         3          BLA

I want to be able to do Group by function liek SQL:

我希望能够通过函数liek SQL进行分组:

    select count(head2) , head3
    group by head3

And the output will be something like:

输出将是这样的:

3          BLA

iv'e been told that i able to do this only on the server side but I want to do that on the client side.

iv'有人告诉我,我只能在服务器端这样做,但我想在客户端这样做。

the table is in format of HTML

该表格式为HTML

  

    

      
head1
      
head2
      
head3
    
  
  

    

      
x
      
1
      
BLA
    
    

      
y
      
2
      
BLA
    
    

      
z
      
3
      
BLA
    
  

2 个解决方案

function countByGroup(data, val)
{
    var i, count = 0;
    for (i=0; i

  

    

      
head1
      
head2
      
head3
    
  
  

    

      
x
      
1
      
BLA
    
    

      
y
      
2
      
BLA
    
    

      
z
      
3
      
THER