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Tip of the Day
Language: Visual Basic
Expertise: Beginner
Apr 7, 2000



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Convert Static Variables for More Speed

Referencing a static local variable in a procedure is two to three times slower than a regular local, dynamic variable. If your procedure demands every last bit of speed possible, convert all static variables into module-level variables.

However, this approach has a nasty design implication—the procedure becomes less self-contained. You must remember to copy and paste the module-level variable when you reuse the procedure in another project. But this approach might make sense in an extremely intense routine. Further, referencing a variable declared at module level is faster than referencing a global variable declared in a separate BAS module. If you don't need to share a variable among all of an app's forms and modules, you should declare it in the only form or module that uses it.

Jai Bardhan
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