perf: private count vs #count
Read OriginalThis article analyzes the performance difference between TypeScript's `private` property modifier and JavaScript's native private fields (using `#`). It explains that TypeScript's `private` is only a compile-time check and doesn't exist at runtime, while JavaScript's private fields are truly inaccessible. The author benchmarks both approaches and concludes there is no meaningful performance difference for practical use cases, recommending JavaScript's native private fields for robustness.
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