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How to create a app as "take a number dispenser"

I am wondering if there is someone how develop a code yo generate numbers un as a take a number dispenser.

19th Oct 2017, 5:23 AM
Ralph
Ralph - avatar
2 Answers
0
Random numbers ?
19th Oct 2017, 2:50 PM
avatarluca
avatarluca - avatar
0
Not really. The numbers should be un orden with a letter (A01, A02, etc)
19th Oct 2017, 9:51 PM
Ralph
Ralph - avatar