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Answers and rating deltas for

How to check if value is null and use old( ) function to keep data after validation page refresh?

Author Votes Δ
Fateh Alrabeai 2 +3.75
Md Azizur Rahman 0 -1.74
Enrique Bermúdez 0 -2.01
Last visited: May 14, 2020, 3:16:00 AM