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ID: go-best-practices/check-len
Language: Go
Severity: Warning
Category: Best Practices
In Go, the built-in len()
function returns the length of a slice, map, or string, and it never produces a negative value. The length of any data structure in Go is always a non-negative integer.
Hence, the condition len(mySlice) < 0
will always evaluate to false, and the code block within the if statement will never execute.
To fix this issue, you should remove the unnecessary check for len(mySlice) < 0
:
func main() {
if len(mySlice) < 0 {
// never occurs
}
}
func main() {
if len(mySlice) == 0 {
}
}
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