why cannot use (type func(string)) as type func(interface{}) in assignment

Question

Please first have a look at the code below.

package main

import \"fmt\"

type InterfaceFunc func(interface{})
type StringFunc func(string)

func stringFunc(s st         


        

Answer 1

You can not do s = i or i = s, and the reason is both functions are of different type (different signatures), you can not just assign one type with another in golang.

Also type InterfaceFunc func(interface{}) type StringFunc func(string) are sitting there doing nothing.