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Iif(lExp, .t., .f.)?
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À
22/01/2010 10:14:39
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Divers
Thread ID:
01445223
Message ID:
01445467
Vues:
27
>Tamar, I'm referring now to the case of THIS.VALUE only, not to all cases. If you'd see that the programmer does not use = .T. in all cases except for the THIS.VALUE cases, would you even then think negative of that programmer?
>
>>That said, I did test this stuff for an Ask Advisor piece a few years (Jan. '06 issue), and found that it doesn't have a performance effect.
>>
>>However, using an IF to assign a logical value to a variable rather than just assigning the expression was slower.
>
>I often assign a property's value to a local variable that will be used in the rest of that code more times. E.g.
ldStartDate = this.parent.dSDate
>for ln = 1 to 10
>    ? m.ldStartDate + m.ln
>next
One reason is that it gives me the chance to write easier readable code. But also I have the hunch that it may be slower to retrieve this.parent.dSDate x times than the local variable. Is this hunch valid? Or is it just me.

I think the difference could be found in a million(+) loop.
If it's not broken, fix it until it is.


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