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Use of Functions
#18
Example showing difference passing parameter variables by reference or by value:
Code: (Select All)

x = 5: x$ = "ABC"
Print "By Reference:"
Print "Checkfunction returns "; CheckFunction$(x, x$)
Print "After CheckFunction x="; x
Print "After CheckFunction x$="; x$

x = 5: x$ = "ABC"
Print "By Value:"
Print "Checkfunction returns "; CheckFunction$((x), "a" + x$)
Print "After CheckFunction x="; x
Print "After CheckFunction x$="; x$

Function CheckFunction$ (x, x$)
  x = x * 3: x$ = x$ + "DEF"
  CheckFunction$ = "hello"
End Function
45y and 2M lines of MBASIC>BASICA>QBASIC>QBX>QB64 experience
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Messages In This Thread
Use of Functions - by PhilOfPerth - 05-20-2025, 11:21 PM
RE: Use of Functions - by bplus - 05-20-2025, 11:24 PM
RE: Use of Functions - by ahenry3068 - 05-20-2025, 11:34 PM
RE: Use of Functions - by PhilOfPerth - 05-21-2025, 12:25 AM
RE: Use of Functions - by bplus - 05-21-2025, 12:39 AM
RE: Use of Functions - by PhilOfPerth - 05-21-2025, 01:33 AM
RE: Use of Functions - by SMcNeill - 05-21-2025, 02:33 AM
RE: Use of Functions - by PhilOfPerth - 05-21-2025, 04:24 AM
RE: Use of Functions - by ahenry3068 - 05-21-2025, 06:41 AM
RE: Use of Functions - by bplus - 05-21-2025, 09:12 AM
RE: Use of Functions - by SMcNeill - 05-21-2025, 09:45 AM
RE: Use of Functions - by bplus - 05-21-2025, 11:23 AM
RE: Use of Functions - by bplus - 05-21-2025, 11:35 AM
RE: Use of Functions - by Kernelpanic - 05-22-2025, 03:00 PM
RE: Use of Functions - by bplus - 05-21-2025, 11:41 AM
RE: Use of Functions - by SMcNeill - 05-21-2025, 11:45 AM
RE: Use of Functions - by bplus - 05-21-2025, 11:55 AM
RE: Use of Functions - by TempodiBasic - 05-21-2025, 12:06 PM
RE: Use of Functions - by mdijkens - 05-21-2025, 12:11 PM
RE: Use of Functions - by TempodiBasic - 05-21-2025, 08:40 PM
RE: Use of Functions - by Dimster - 05-21-2025, 03:34 PM
RE: Use of Functions - by Kernelpanic - 05-21-2025, 06:01 PM
RE: Use of Functions - by CharlieJV - 05-22-2025, 02:37 AM
RE: Use of Functions - by hsiangch_ong - 05-22-2025, 03:30 PM
RE: Use of Functions - by PhilOfPerth - 05-22-2025, 10:22 PM
RE: Use of Functions - by bplus - 05-22-2025, 11:37 PM
RE: Use of Functions - by madscijr - 05-23-2025, 12:34 AM
RE: Use of Functions - by bplus - 05-23-2025, 10:29 AM
RE: Use of Functions - by bplus - 05-23-2025, 10:49 AM
RE: Use of Functions - by bplus - 05-23-2025, 11:22 AM
RE: Use of Functions - by PhilOfPerth - 05-23-2025, 10:16 PM
RE: Use of Functions - by Pete - 05-23-2025, 10:55 PM
RE: Use of Functions - by madscijr - 05-24-2025, 03:10 AM
RE: Use of Functions - by OldMoses - 05-25-2025, 06:05 PM
RE: Use of Functions - by eoredson - 05-26-2025, 08:59 PM
RE: Use of Functions - by PhilOfPerth - 05-28-2025, 03:32 AM
RE: Use of Functions - by Kernelpanic - 05-26-2025, 11:47 PM
RE: Use of Functions - by Pete - 05-27-2025, 11:25 PM
RE: Use of Functions - by bplus - 05-28-2025, 06:17 AM
RE: Use of Functions - by PhilOfPerth - 05-28-2025, 09:11 AM
RE: Use of Functions - by bplus - 05-28-2025, 09:17 AM
RE: Use of Functions - by PhilOfPerth - 05-28-2025, 09:22 AM
RE: Use of Functions - by SMcNeill - 05-28-2025, 09:53 AM
RE: Use of Functions - by PhilOfPerth - 05-28-2025, 10:59 AM
RE: Use of Functions - by Kernelpanic - 05-28-2025, 05:08 PM
RE: Use of Functions - by TempodiBasic - 05-28-2025, 10:18 PM
RE: Use of Functions - by Pete - 05-29-2025, 12:08 AM
RE: Use of Functions - by Pete - 05-29-2025, 12:22 AM
RE: Use of Functions - by PhilOfPerth - 05-29-2025, 02:02 AM
RE: Use of Functions - by PhilOfPerth - 05-29-2025, 02:42 AM
RE: Use of Functions - by SMcNeill - 05-29-2025, 02:38 AM
RE: Use of Functions - by Pete - 05-29-2025, 06:52 PM
RE: Use of Functions - by Kernelpanic - 05-29-2025, 08:21 PM
RE: Use of Functions - by TempodiBasic - 05-30-2025, 01:49 PM

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