Search: possible to search a function of the value?

Gerardo

Instead of using the value or the rendered value to filter, is it possible to use a function?

Two examples:

1) Have an index of another array, available in json.array_values, in oObj.aData[0]. Would like to search on json.values[oObj.aData[0]].join().

2) Have a unix timestamp value in a column. Would like to search on Date(1000 * oObj.aData[1]).toLocaleString() or something like that.

Solved both using hidden columns, but wonder if there is anpther way.

Thanks,
Gerardo