Separate the new details from old details

Question

This is my interface in here by "Add New Row" i will add new details, while submitting all details which is displaying here will send to RI, 
 but i want to send the only newly added details, how to separate the new from the old details, the new details will be add with the old details(it be local) only

Stefan Helzle · Accepted Answer

Create a separate local variable holding a copy of the original data. Make sure to use a!refreshVariable to keep the original state. Then you can use the difference() function to get new or removed items.

Separate the new details from old details

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