go - 如何从 Go 中的结构 slice 中删除结构？

Question

如何从用户定义结构的用户定义 slice 中删除用户定义结构？

像这样:

type someStruct struct {
    someOtherStruct *typeOfOtherStruct
    someInt         int
    someString      string
}

var someStructs []someStruct

func someFunc(ss someStruct, ssSlice someStructs) {
    // ..  want to remove ss from ssSlice
}

我可能应该循环直到找到索引，然后将其删除。但是我该如何比较这些结构呢？

Answer 1

您找到该元素并创建一个减去该索引的新 slice 。

关于 Playground 的示例

package main

import "fmt"

type someStruct struct {
    someInt    int
    someString string
}

func removeIt(ss someStruct, ssSlice []someStruct) []someStruct {
    for idx, v := range ssSlice {
        if v == ss {
            return append(ssSlice[0:idx], ssSlice[idx+1:]...)
        }
    }
    return ssSlice
}
func main() {
    someStructs := []someStruct{
        {1, "one"},
        {2, "two"},
        {3, "three"},
    }
    fmt.Println("Before:", someStructs)
    someStructs = removeIt(someStruct{2, "two"}, someStructs)
    fmt.Println("After:", someStructs)
}