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distinct.go
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distinct.go
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package slices
// DistinctInts remove duplicate element in slices.
func DistinctInts(s []int) []int {
if s == nil || len(s) == 0 {
return s
}
ans := make([]int, 0)
aMap := make(map[int]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctInt8s remove duplicate element in slices.
func DistinctInt8s(s []int8) []int8 {
if s == nil || len(s) == 0 {
return s
}
ans := make([]int8, 0)
aMap := make(map[int8]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctInt16s remove duplicate element in slices.
func DistinctInt16s(s []int16) []int16 {
if s == nil || len(s) == 0 {
return s
}
ans := make([]int16, 0)
aMap := make(map[int16]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctInt32s remove duplicate element in slices.
func DistinctInt32s(s []int32) []int32 {
if s == nil || len(s) == 0 {
return s
}
ans := make([]int32, 0)
aMap := make(map[int32]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctInt64s remove duplicate element in slices.
func DistinctInt64s(s []int64) []int64 {
if s == nil || len(s) == 0 {
return s
}
ans := make([]int64, 0)
aMap := make(map[int64]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctFloat32s remove duplicate element in slices.
func DistinctFloat32s(s []float32) []float32 {
if s == nil || len(s) == 0 {
return s
}
ans := make([]float32, 0)
aMap := make(map[float32]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctFloat64s remove duplicate element in slices.
func DistinctFloat64s(s []float64) []float64 {
if s == nil || len(s) == 0 {
return s
}
ans := make([]float64, 0)
aMap := make(map[float64]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}
// DistinctStrings remove duplicate element in slices.
func DistinctStrings(s []string) []string {
if s == nil || len(s) == 0 {
return s
}
ans := make([]string, 0)
aMap := make(map[string]struct{})
for _, i := range s {
if _, ok := aMap[i]; !ok {
ans = append(ans, i)
aMap[i] = struct{}{}
}
}
return ans
}