Use sync.OnceValue for one-time initialization #460
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Replace manual sync.Once pattern with sync.OnceValue from Go 1.21. This simplifies the allowed password characters initialization by removing the need for a custom struct type and explicit Do() call. sync.OnceValue returns a function that lazily initializes and caches the value on first call, making the code more concise and idiomatic. Co-authored-by: Shelley <shelley@exe.dev>
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Replace manual sync.Once pattern with sync.OnceValue from Go 1.21. This simplifies the allowed password characters initialization by removing the need for a custom struct type and explicit Do() call.
sync.OnceValue returns a function that lazily initializes and caches the value on first call, making the code more concise and idiomatic.