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Singleton

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Design Patterns in .NET Core 3
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Abstract

When discussing which patterns to drop, we found that we still love them all. (Not really – I’m in favor of dropping Singleton. Its use is almost always a design smell.)

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Change history

  • 30 April 2021

    The original version of the chapters 5, 6 & 8 was inadvertently published with the introductory text placed at the end of incorrect chapters. The chapters affected are:

Notes

  1. 1.

    Note that, similar to C#, F#’s default implementation also uses lazy. The only difference is that F# has a somewhat more concise syntax: writing lazy(x + y()) automatically constructs a Lazy<’T> behind the scenes.

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© 2020 Dmitri Nesteruk

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Nesteruk, D. (2020). Singleton. In: Design Patterns in .NET Core 3. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-6180-4_6

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