Immutability is the inability to modify data after it has been created. Modifications are instead made by copying the data. A property of immutable data is that it is *referentially transparent*.

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Insert a character into a string

For practicing reasons I would like to write a method which inserts a character into a string. I would like to know: What is the best practice concerning placement of a comment within methods? For ...
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Allow changing the properties of a mutable controller in a thread safe way

I have a (control engineering) controller. These controllers usually need several parameters to do their thing, and in my application it is desirable that these parameters can be changed while the ...
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How is my implementation of an immutable stack?

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Functional linked list

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Removing redundancy from an immutable “rules class”

I am writing a board game program in Java. Slightly similar to chess or civilization in that each player has a set of units, and each unit has certain actions that it can take. The base ...
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Immutable C++ stack - thoughts and performance

What are your thoughts on the fallowing immutable stack implementation? It is implemented having as a basis a C# immutable stack (where garbage collector assistance does not impose using a reference ...
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Circular dependencies between immutable objects; the Freeze Pattern

Generally, I structure small threadsafe immutable objects like this: ...
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Comments on my Java pattern for Mutable turned Immutable objects

Commenting omitted to give you the idea. I've been toying with this recently as a variant of the Builder pattern. I've recently fallen in love with immutable objects for the benefits they give in ...
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Immutable pure data classes with public setters on properties

I'm putting together some classes as a model for some information (that I'm currently pulling from a website). The classes are implemented in C# - because in the current version of F# there are no ...