Can't return nil, but zero value of slice
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Sergi
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Published on 2012-12-20T09:58:26Z
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2012/12/20
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go
I am having the case in which a function with the following code:
func halfMatch(text1, text2 string) []string {
...
if (condition) {
return nil // That's the final code path)
}
...
}
is returning []string(nil) instead of nil. At first, I thought that perhaps returning nil in a function with a particular return type would just return an instance of a zero-value for that type. But then I tried a simple test and that is not the case.
Does anybody know why would nil return an empty string slice?
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