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While @Albert gave an excellent answer, here are my two cents: Naming One thing which is true almost always: make your context name for the package the same as the file name for that package (without …

This question was indeed discussed on SO, here. I am usually using the version of CleanUp function by WReach, from that answer. It is however not fully bulletproof, as I noted in comments to that answ …

I'll just throw in a few random thoughts in no particular order, but this will be a rather high-level view on things. This is necessarily a subjective exposition, so treat it as such. Typical use cas …

I personally use capitalized names for exported symbols, and think that this is the recommended practice generally (for example, Roman Maeder suggests this convention in his book, which is, while date …

General The real problem with objects is that sooner or later you really start to want some of the fields mutable. And once you want it, you really open a can of worms. Also, for methods, you will fi …

I have answered almost exactly this question (somewhat more general one, if we interpret this one as being concerned only with Throw and Catch) here. Since you asked a more narrow one, I feel it may …

Preamble I had a talk devoted specifically to this topic, on Second Russian WTC in 2014. Unfortunately, it is in Russian. But I will try to summarize it here. Since this post is becoming too long, I d …

Managing the complexity III: using powerful abstractions In this section I will list a few techniques which allow one to write more modular code and better separate the concerns, by using certain pow …

The main change since that time seems to be that the modern way of using options is associated with OptionsPattern[] - OptionValue commands. A typical way of defining a function would be: Options[f …

Managing the complexity, II: controlling complexity on the smaller scale There are a few things you can do to control and reduce the complexity of your code, even on the small scale - long before you …

If you want to revert the entire system to some state, then CleanSlate` may be the best option. If you want to unload a few specific packages though, you can use my package PackageManipulations`, avai …

This is not a question of functional style per se. Functional style is, AFAICT, largely about avoiding mutable state (where possible), using functions as fundamental building blocks, using certain abs …

ClearAll clears all definitions associated with the symbol. However, the symbol remains in the symbol table, so all references to that symbol from other symbols (their definitions) remain fully valid. …

Preamble This is a very good question, because answering it will make it very clear what immutability means, both in general and in the context of Associations. General A few general words on immutabi …