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When to use trait components, objects, package objects in Scala

When I am adding dependencies in Scala, I tend to use mixin trait components for those that are inherit to the class itself. For example, DaoGenerator extends Generator However, for trait components ...
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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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A modification of singleton pattern

"Singleton" is widely considered anti-pattern ("bad" in everyday language). What about this alternative modified singleton pattern? An object constructor for our class ensures that at any given ...
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.NET server object instance: Singleton vs Per Call vs Per Client in the context of a 2 tier architecture

Note: This is a theoretical question weighing up the pros and cons of server object instancing, the tier architecture is not the topic of the question. My question is simply whether my thoughts are ...
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Will this singleton style class work with accessing a session on multiple MVC controllers?

Question background: I have an e-commerce site I'm developing that requires multiple controller methods to access a single session variable. The idea: My idea was to create a singleton style class ...