去掉slice中重复的数据类型

去重

去掉slice中重复的数据

package main

import (
    "fmt"
)

func main() {
    orderIds := make([]int64, 0)
    orderIds = []int64{1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 4, 5}

    // 最直接的方式
    slice := make([]interface{}, len(orderIds))
    for i := range orderIds {
        slice[i] = orderIds[i]
    }
    slice = removeDuplicate(slice)

    fmt.Println(slice)
}

// 去掉slice中重复的元素
func removeDuplicate(slice []interface{}) []interface{} {
    newSlice := make([]interface{}, 0, len(slice))

    for _, old := range slice {
        isExist := false
        for _, new := range newSlice {
            if new == old {
                isExist = true
                break
            }
        }

        if !isExist {
            newSlice = append(newSlice, old)
        }
    }

    return newSlice
}

by zzj