Friday, November 30, 2012

VBA ≅ javascript on a webpage (Singletons)

Let's focus on the typical use cases --

* A typical javascript app Operates on a DOM tree of the enclosing webpage.
* A typical VBA app operates on the EOM tree (Excel object model) of an attached workbook.

----} In both scenarios, the programmer's Main job is manipulation of the objects in the *OM. The *OM tree is essentially a big family of singletons. I'd say most GUI apps rely heavily on singletons even if you don't like singletons.

Usually the VBA app is tailor made for that particular workbook. Tight coupling between the workbook and the VBA module. Javascript is similar.

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