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Designing Document class for Doc Imaging - optional fields

I'm working on a project that processes many Documents. A Document CAN have a Cover Sheet (if the first page is one) A Document CAN have a Stub (if Document is large) It matters whether or not a ...
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65 views

Using Singletons in JS with workers

I'm building a javascript application that does continuous drawing, but relies on asynchronous scripts in the background which also need to poll for events and write to "global variables". This got me ...
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213 views

Use a global variable, a singleton, or something else

Preface: I am working in PHP (Abandon hope all ye who enter here). Background: There exists a large set of global functions in PHP, a number of which are miscellaneous system calls, like sleep (and ...