Split the name using comma is not working

[Nandakumar333]

Hi Team,

I want to spit name using "," then need to update FirstName and LastName. But if I tried with comma it's not working. Can you give me the solution for this scenario.

[Courela]

Comma is a reserved character, you need to escape it or use #constant_comma function

#lastindexof(#valueof($.name),#constant_comma())

or

#lastindexof(#valueof($.name),/,)

PS: don't paste images, place text instead, it's easier to copy.