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array.go
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array.go
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package convert
import (
"strconv"
"strings"
)
// 合并
func Merge[T int | int8 | int32 | int64 | string](arrays ...[]T) []T {
var result []T
for _, array := range arrays {
result = append(result, array...)
}
return result
}
// 合并且去重
func MergeAndRemoveDuplicate[T int | int8 | int32 | int64 | string](arrays ...[]T) []T {
var result []T
if len(arrays) == 0 {
return result
}
for _, array := range arrays {
result = append(result, array...)
}
return RemoveDuplicate(result)
}
// 去重
func RemoveDuplicate[T int | int8 | int32 | int64 | string](arr []T) []T {
var result []T
if len(arr) == 0 {
return result
}
tempMap := map[T]byte{}
for _, e := range arr {
if _, ok := tempMap[e]; !ok {
tempMap[e] = 1
result = append(result, e)
}
}
return result
}
// 查找元素s在array中是否存在
func IndexOf(array []string, s string) int {
for index, value := range array {
if value == s {
return index
}
}
return -1
}
// 字符串数组转成int64数组
func StringArrayToInt64Array(sa []string) ([]int64, error) {
si := make([]int64, 0, len(sa))
for _, a := range sa {
n, err := strconv.ParseInt(a, 10, 64)
if err != nil {
return si, err
}
si = append(si, n)
}
return si, nil
}
// 字符串转成int64数组
func StringToInt64Array(str string) ([]int64, error) {
str = strings.Trim(str, ",")
ns := strings.Split(str, ",")
return StringArrayToInt64Array(ns)
}
// Contains 数组是否包含某元素
func Contains[T int | int8 | int32 | int64 | string](slice []T, s T) int {
for index, value := range slice {
if value == s {
return index
}
}
return -1
}
// 字符串是否包含其它字符串
func ContainsSubString(src string, sub string) bool {
if len(src) == 0 {
return false
}
arr := strings.Split(src, ",")
n := Contains(arr, sub)
return n >= 0
}