Singleton Pattern
Version 1.0.0 · Updated 2026-07-30
CORE DEFINITION
Ensure a class has only one instance and provide a global access point to it.
SCAFFOLDING EFFECT
Reduce cognitive load
Single source of truth. When managing data (such as company contacts, financial ledgers) or core rules (such as a constitution), the singleton pattern must be adopted. If two versions of "truth" exist simultaneously, the system will inevitably fall into chaos.
Anchor fast decisions
Through private constructors and a global access point, ensure that the class has only one instance in the process, making shared state/resources have a single authoritative source, avoiding conflicts from multiple "truths".
MINIMUM ACTION
In progress 0/4Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Singleton_patternverified
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