How to check if an object has a particular method?

Question

In Go, how do you check if an object responds to a method?

For example, in Objective-C this can be achieved by doing:

if ([obj respondsToSelector:@se         


        

Answer 1

If obj is an interface{} you can use Go type assertions:

if correctobj, ok := obj.(interface{methodName()}); ok { 
  correctobj.methodName() 
}