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DarkBASIC Discussion / Default function parameters?

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Radio Check
20
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Joined: 18th Aug 2004
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Posted: 29th Sep 2004 05:21
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I know this probably doesn't exist, but just in case... is there a way that a function can be set up to either take a parameter or, on the absence of a parameter, use a default value?

ForInstance()
ForInstance(42)

function ForInstance(Val)
if not exist Val then Val = 24
endfunction

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BatVink
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22
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Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 29th Sep 2004 05:54
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No, I'm afraid not. The compiler will reject it.

BatVink
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blanky
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Joined: 3rd Aug 2004
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Posted: 29th Sep 2004 05:59
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The closest thing, is you can let them pass 0 or a blank string ("").

By default, a non-existent variable is 0.

So, for example:

[BEGIN CODE]

tNum=36
print tNum
print nonExistentVar

[END CODE]

Which would come out with:

36
0

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