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docs: clarify Empty returns zero value #543

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https://go.dev/ref/spec#The_zero_value does not define “empty value”. It informally mentions “empty value”, meaning (non-nil && 0-length) slice or map.

Note that the zero value for a slice or map type is not the same as an initialized but empty value of the same type.

xuanhong added 2 commits October 18, 2024 14:35
https://go.dev/ref/spec#The_zero_value does not define "empty value". It informally mentions "empty value", meaning (non-nil && 0-length) slice or map.

> Note that the zero value for a slice or map type is not the same as an initialized but empty value of the same type.
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