Hi,
I have used the grid column template before with Pure Javascript, now I'm using them with React and for some reason, it's not rendering, I even copied the full example and it didn't work for me, after debugging the code I might found the reason why it's not rendering the result,
you will see, that after this line, the result becomes null, so the cell will be empty all the time.
This the code I'm using, now I'm using the sample example