如何在Go中从切片结构中删除结构？

Question

How can I remove a user defined struct from a user defined slice of user defined structs?

Something like this:

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

var someStructs []someStruct

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

I probably should loop til I find the index, and then remove it. But how do I compare the structs?

Answer 1

You find the element and make a new slice minus that index.

Example on Playground

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)
}