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
}
}
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
}
}