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$ curl repovive.com/roadmaps/go/slices/nil-vs-empty-slices

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$ curl repovive.com/roadmaps/go/slices/nil-vs-empty-slices

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Nil vs Empty Slices - Slices | Go | Repovive

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Nil vs Empty Slices

Two kinds of emptiness

A nil slice and an empty slice are different:

var nilSlice []int        // nil, len=0, cap=0
emptySlice := []int{}     // not nil, len=0, cap=0

fmt.Println(nilSlice == nil)   // true
fmt.Println(emptySlice == nil) // false

Both have length $0$ and behave similarly. Use nil slices unless you need a non-nil empty slice.