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caiguanhao/append.go

Created December 31, 2021 06:49
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append.go
func appendStringsIfMissing(slice []string, elements ...string) (out []string) {
out = slice
outer:
for _, element := range elements {
for _, e := range slice {
if e == element {
continue outer
}
}
out = append(out, element)
}
return
}
func appendStringIfMissing(slice []string, element string) []string {
for _, e := range slice {
if e == element {
return slice
}
}
return append(slice, element)
}
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