package utils

import (
	"encoding/json"
)

// 去除slice中的重复元素
func UniqueSliceUInt64(sliceIn []uint64) []uint64 {
	sliceOut := make([]uint64, 0, len(sliceIn))
	m := make(map[uint64]struct{}, len(sliceIn))
	for _, i := range sliceIn {
		if _, ok := m[i]; !ok {
			m[i] = struct{}{}
			sliceOut = append(sliceOut, i)
		}
	}
	return sliceOut
}

func ToString(s interface{}) (string, error) {
	b, err := json.Marshal(s)
	if err != nil {
		return "", nil
	}
	return string(b), nil
}

func SliceToMapUInt64(s []uint64) map[uint64]struct{} {
	m := make(map[uint64]struct{}, len(s))
	for _, i := range s {
		m[i] = struct{}{}
	}
	return m
}