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Add index functions

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世界 2023-06-13 22:25:54 +08:00
parent 00f3153336
commit a3b120b25e
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GPG key ID: CD109927C34A63C4
1 changed files with 30 additions and 12 deletions
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42
common/cond.go
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@ -20,8 +20,8 @@ func Any[T any](array []T, block func(it T) bool) bool {
} }
func AnyIndexed[T any](array []T, block func(index int, it T) bool) bool { func AnyIndexed[T any](array []T, block func(index int, it T) bool) bool {
for i, it := range array { for index, it := range array {
if block(i, it) { if block(index, it) {
return true return true
} }
} }
@ -38,8 +38,8 @@ func All[T any](array []T, block func(it T) bool) bool {
} }
func AllIndexed[T any](array []T, block func(index int, it T) bool) bool { func AllIndexed[T any](array []T, block func(index int, it T) bool) bool {
for i, it := range array { for index, it := range array {
if !block(i, it) { if !block(index, it) {
return false return false
} }
} }
@ -47,8 +47,8 @@ func AllIndexed[T any](array []T, block func(index int, it T) bool) bool {
} }
func Contains[T comparable](arr []T, target T) bool { func Contains[T comparable](arr []T, target T) bool {
for i := range arr { for index := range arr {
if target == arr[i] { if target == arr[index] {
return true return true
} }
} }
@ -81,8 +81,8 @@ func FlatMap[T any, N any](arr []T, block func(it T) []N) []N {
func FlatMapIndexed[T any, N any](arr []T, block func(index int, it T) []N) []N { func FlatMapIndexed[T any, N any](arr []T, block func(index int, it T) []N) []N {
var retAddr []N var retAddr []N
for i, item := range arr { for index, item := range arr {
retAddr = append(retAddr, block(i, item)...) retAddr = append(retAddr, block(index, item)...)
} }
return retAddr return retAddr
} }
@ -113,8 +113,8 @@ func FilterNotDefault[T comparable](arr []T) []T {
func FilterIndexed[T any](arr []T, block func(index int, it T) bool) []T { func FilterIndexed[T any](arr []T, block func(index int, it T) bool) []T {
var retArr []T var retArr []T
for i, it := range arr { for index, it := range arr {
if block(i, it) { if block(index, it) {
retArr = append(retArr, it) retArr = append(retArr, it)
} }
} }
@ -131,14 +131,32 @@ func Find[T any](arr []T, block func(it T) bool) T {
} }
func FindIndexed[T any](arr []T, block func(index int, it T) bool) T { func FindIndexed[T any](arr []T, block func(index int, it T) bool) T {
for i, it := range arr { for index, it := range arr {
if block(i, it) { if block(index, it) {
return it return it
} }
} }
return DefaultValue[T]() return DefaultValue[T]()
} }
func Index[T any](arr []T, block func(it T) bool) int {
for index, it := range arr {
if block(it) {
return index
}
}
return -1
}
func IndexIndexed[T any](arr []T, block func(index int, it T) bool) int {
for index, it := range arr {
if block(index, it) {
return index
}
}
return -1
}
//go:norace //go:norace
func Dup[T any](obj T) T { func Dup[T any](obj T) T {
if UnsafeBuffer { if UnsafeBuffer {