smart_canteen/app/utils/duplicate.go

package utils

func RemoveDuplicateString(elms []string) []string {
	res := make([]string, 0, len(elms))
	temp := map[string]struct{}{}
	for _, item := range elms {
		if _, ok := temp[item]; !ok {
			temp[item] = struct{}{}
			res = append(res, item)
		}
	}
	return res
}

func RemoveDuplicateInt(elms []int) []int {
	res := make([]int, 0, len(elms))
	temp := map[int]struct{}{}
	for _, item := range elms {
		if _, ok := temp[item]; !ok {
			temp[item] = struct{}{}
			res = append(res, item)
		}
	}
	return res
}

func RemoveDuplicateInt64(elms []int64) []int64 {
	res := make([]int64, 0, len(elms))
	temp := map[int64]struct{}{}
	for _, item := range elms {
		if _, ok := temp[item]; !ok {
			temp[item] = struct{}{}
			res = append(res, item)
		}
	}
	return res
}