类型接口{}不支持golang中的索引编制

Question

I have such map:

Map := make(map[string]interface{})

This map is supposed to contain mapping from string to array of objects. Arrays can be of different types, like []Users or []Hosts. I populated this array:

TopologyMap["Users"] = Users_Array
TopologyMap["Hosts"] = Hosts_Array

but when I try to get an elements from it:

Map["Users"][0]

it gives an error: (type interface {} does not support indexing)

How can I overcome it?

Answer 1

You have to explicitly convert your interface{} to a slice of the expected type to achieve it. Something like this https://play.golang.org/p/yZmniZwFar