how to use reflect know the slice data type?

i want to fill the slice data , but using reflect.kind() only let me know field(0) is slice ,
but i don't know it is which type of slice , it culd be int[] or string[] or other type slice

befor i know what slice data type , hastily set value will panic , do some know how to get slice type info?

func WhatSlice(isAny any) {
	vof := reflect.ValueOf(isAny)
	if vof.Kind() != reflect.Struct {
		return
	}
	switch vof.Field(0).Kind() {
	case reflect.Slice:
		for i := 0; i < vof.Field(0).Len(); i++ {
			// how to know this field is []int or []string?
			// vof.Field(0).Index(i).Set()
		}
	default:
		return
	}
}

You can check it before call for loop with vof.Field(0).Index(0).Kind()

func WhatSlice(isAny any) {
	vof := reflect.ValueOf(isAny)
	if vof.Kind() != reflect.Struct {
		return
	}
	switch vof.Field(0).Kind() {
	case reflect.Slice:
		if vof.Field(0).Len() == 0 {
			fmt.Println("empty slice")
			return
		}
		switch vof.Field(0).Index(0).Kind() {
		case reflect.Int:
			fmt.Println("int here")
			// for i := 0; i < vof.Field(0).Len(); i++ {
			// how to know this field is []int or []string?
			// vof.Field(0).Index(i).Set()
			// }
		case reflect.String:
			fmt.Println("string here")
		}
	default:
		return
	}
}

playground

Use the Type you can directly get the slice type
but should use the string type to distinguish it.

func WhatSlice(isAny any) {
	vof := reflect.ValueOf(isAny)

	if vof.Kind() != reflect.Struct {
		return
	}

	switch vof.Field(0).Kind() {
	case reflect.Slice:
		switch vof.Field(0).Type().String() {
		case "[]int":
			fmt.Println("int here")
		case "[]string":
			fmt.Println("string here")
		}
	default:
		return
	}
}

if you want get the type to slice you can refer to this page :

https://www.geeksforgeeks.org/reflect-sliceof-function-in-golang-with-examples/#:~:text=SliceOf()%20Function%20in%20Golang%20is%20used%20to%20get%20the,reflect%20package%20in%20the%20program.&text=Parameters%3A%20This%20function%20takes%20only,of%20Type%20type(t).