Javascript table control (self-written, not available on the Internet) on the left side of the header _ javascript skills

On the left side is the JS table of the header. You have encountered it before, but you have not found it. So you have made great efforts to provide code to share with everyone. If you have similar requirements, refer to the following, this table is used in the project. I searched it once and found that there was no suitable one. So I tried to improve myself.

The final presentation effect is as follows,
1. The table data in the header is displayed on the left,
2. Supports multiple rows and multiple headers
3. Fixed Header Function
4. Titles supported
5. Get the data in the table
6. Support for IE/CHROME
7. The table can be automatically centered Based on the Content row

The Code is as follows:

Fixed tests on the left side of the Grid