Without using serverside we can use data-order attribute for custom sort. I want to use it in serverside too, as I have a column where it contains mixed data sets like int, float, string. The sorting is happening by take the column as a string. So I'm getting 75 at first then getting 100.
Example : [0, 100, 75, 100, NA] is sorted desc as [75, 100, 100, 0, NA]. Sorry I cannot link a test case please don't ask for it.