_s.beg("_")

[Davider]

Thanks for your help,
Regarding this point, it is not easy to intuitively understand in QM.
It works perfectly fine in LA, with no issues as mentioned above.

Code:

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//.
script.setup(trayIcon: true, sleepExit: true);
//..

string s="_54001";
print.it(s.StartsWith("_"));