How to catch runtime error gracefully

[Eilon]

Please check the JSFiddle (link below):

on line 30 - I'm trying to print no defined variable (on purpose)
I want to catch the error and print a nice message, with alert, including the error line number

Thank you

https://jsfiddle.net/yalondpsi/csx8ej07/123/

[Denis Migdal]

try:
print(name)
except Exception as e:
      print("c")

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[Eilon]

of course.. :)